20984000000

素因数分解:

$2^9\times 5^6\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:152

約数の個数: 280

約数和(自身を含む): 54506021064

約数和(自身を除く): 33522021064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 61, 64, 80, 86, 100, 122, 125, 128, 160, 172, 200, 215, 244, 250, 256, 305, 320, 344, 400, 430, 488, 500, 512, 610, 625, 640, 688, 800, 860, 976, 1000, 1075, 1220, 1250, 1280, 1376, 1525, 1600, 1720, 1952, 2000, 2150, 2440, 2500, 2560, 2623, 2752, 3050, 3125, 3200, 3440, 3904, 4000, 4300, 4880, 5000, 5246, 5375, 5504, 6100, 6250, 6400, 6880, 7625, 7808, 8000, 8600, 9760, 10000, 10492, 10750, 11008, 12200, 12500, 12800, 13115, 13760, 15250, 15616, 15625, 16000, 17200, 19520, 20000, 20984, 21500, 22016, 24400, 25000, 26230, 26875, 27520, 30500, 31232, 31250, 32000, 34400, 38125, 39040, 40000, 41968, 43000, 48800, 50000, 52460, 53750, 55040, 61000, 62500, 64000, 65575, 68800, 76250, 78080, 80000, 83936, 86000, 97600, 100000, 104920, 107500, 110080, 122000, 125000, 131150, 134375, 137600, 152500, 156160, 160000, 167872, 172000, 190625, 195200, 200000, 209840, 215000, 244000, 250000, 262300, 268750, 275200, 305000, 320000, 327875, 335744, 344000, 381250, 390400, 400000, 419680, 430000, 488000, 500000, 524600, 537500, 550400, 610000, 655750, 671488, 671875, 688000, 762500, 780800, 800000, 839360, 860000, 953125, 976000, 1000000, 1049200, 1075000, 1220000, 1311500, 1342976, 1343750, 1376000, 1525000, 1600000, 1639375, 1678720, 1720000, 1906250, 1952000, 2000000, 2098400, 2150000, 2440000, 2623000, 2687500, 2752000, 3050000, 3278750, 3357440, 3440000, 3812500, 3904000, 4000000, 4196800, 4300000, 4880000, 5246000, 5375000, 6100000, 6557500, 6714880, 6880000, 7625000, 8000000, 8196875, 8393600, 8600000, 9760000, 10492000, 10750000, 12200000, 13115000, 13760000, 15250000, 16393750, 16787200, 17200000, 19520000, 20984000, 21500000, 24400000, 26230000, 30500000, 32787500, 33574400, 34400000, 40984375, 41968000, 43000000, 48800000, 52460000, 61000000, 65575000, 68800000, 81968750, 83936000, 86000000, 97600000, 104920000, 122000000, 131150000, 163937500, 167872000, 172000000, 209840000, 244000000, 262300000, 327875000, 344000000, 419680000, 488000000, 524600000, 655750000, 839360000, 1049200000, 1311500000, 2098400000, 2623000000, 4196800000, 5246000000, 10492000000, 20984000000]

約数ペア:

[(1, 20984000000), (2, 10492000000), (4, 5246000000), (5, 4196800000), (8, 2623000000), (10, 2098400000), (16, 1311500000), (20, 1049200000), (25, 839360000), (32, 655750000), (40, 524600000), (43, 488000000), (50, 419680000), (61, 344000000), (64, 327875000), (80, 262300000), (86, 244000000), (100, 209840000), (122, 172000000), (125, 167872000), (128, 163937500), (160, 131150000), (172, 122000000), (200, 104920000), (215, 97600000), (244, 86000000), (250, 83936000), (256, 81968750), (305, 68800000), (320, 65575000), (344, 61000000), (400, 52460000), (430, 48800000), (488, 43000000), (500, 41968000), (512, 40984375), (610, 34400000), (625, 33574400), (640, 32787500), (688, 30500000), (800, 26230000), (860, 24400000), (976, 21500000), (1000, 20984000), (1075, 19520000), (1220, 17200000), (1250, 16787200), (1280, 16393750), (1376, 15250000), (1525, 13760000), (1600, 13115000), (1720, 12200000), (1952, 10750000), (2000, 10492000), (2150, 9760000), (2440, 8600000), (2500, 8393600), (2560, 8196875), (2623, 8000000), (2752, 7625000), (3050, 6880000), (3125, 6714880), (3200, 6557500), (3440, 6100000), (3904, 5375000), (4000, 5246000), (4300, 4880000), (4880, 4300000), (5000, 4196800), (5246, 4000000), (5375, 3904000), (5504, 3812500), (6100, 3440000), (6250, 3357440), (6400, 3278750), (6880, 3050000), (7625, 2752000), (7808, 2687500), (8000, 2623000), (8600, 2440000), (9760, 2150000), (10000, 2098400), (10492, 2000000), (10750, 1952000), (11008, 1906250), (12200, 1720000), (12500, 1678720), (12800, 1639375), (13115, 1600000), (13760, 1525000), (15250, 1376000), (15616, 1343750), (15625, 1342976), (16000, 1311500), (17200, 1220000), (19520, 1075000), (20000, 1049200), (20984, 1000000), (21500, 976000), (22016, 953125), (24400, 860000), (25000, 839360), (26230, 800000), (26875, 780800), (27520, 762500), (30500, 688000), (31232, 671875), (31250, 671488), (32000, 655750), (34400, 610000), (38125, 550400), (39040, 537500), (40000, 524600), (41968, 500000), (43000, 488000), (48800, 430000), (50000, 419680), (52460, 400000), (53750, 390400), (55040, 381250), (61000, 344000), (62500, 335744), (64000, 327875), (65575, 320000), (68800, 305000), (76250, 275200), (78080, 268750), (80000, 262300), (83936, 250000), (86000, 244000), (97600, 215000), (100000, 209840), (104920, 200000), (107500, 195200), (110080, 190625), (122000, 172000), (125000, 167872), (131150, 160000), (134375, 156160), (137600, 152500)]