63440000

素因数分解:

$2^7\times 5^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1$

素因数の和:108

約数の個数: 160

約数和(自身を含む): 172866540

約数和(自身を除く): 109426540

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 61, 64, 65, 80, 100, 104, 122, 125, 128, 130, 160, 200, 208, 244, 250, 260, 305, 320, 325, 400, 416, 488, 500, 520, 610, 625, 640, 650, 793, 800, 832, 976, 1000, 1040, 1220, 1250, 1300, 1525, 1586, 1600, 1625, 1664, 1952, 2000, 2080, 2440, 2500, 2600, 3050, 3172, 3200, 3250, 3904, 3965, 4000, 4160, 4880, 5000, 5200, 6100, 6344, 6500, 7625, 7808, 7930, 8000, 8125, 8320, 9760, 10000, 10400, 12200, 12688, 13000, 15250, 15860, 16000, 16250, 19520, 19825, 20000, 20800, 24400, 25376, 26000, 30500, 31720, 32500, 38125, 39040, 39650, 40000, 41600, 48800, 50752, 52000, 61000, 63440, 65000, 76250, 79300, 80000, 97600, 99125, 101504, 104000, 122000, 126880, 130000, 152500, 158600, 195200, 198250, 208000, 244000, 253760, 260000, 305000, 317200, 396500, 488000, 495625, 507520, 520000, 610000, 634400, 793000, 976000, 991250, 1040000, 1220000, 1268800, 1586000, 1982500, 2440000, 2537600, 3172000, 3965000, 4880000, 6344000, 7930000, 12688000, 15860000, 31720000, 63440000]

約数ペア:

[(1, 63440000), (2, 31720000), (4, 15860000), (5, 12688000), (8, 7930000), (10, 6344000), (13, 4880000), (16, 3965000), (20, 3172000), (25, 2537600), (26, 2440000), (32, 1982500), (40, 1586000), (50, 1268800), (52, 1220000), (61, 1040000), (64, 991250), (65, 976000), (80, 793000), (100, 634400), (104, 610000), (122, 520000), (125, 507520), (128, 495625), (130, 488000), (160, 396500), (200, 317200), (208, 305000), (244, 260000), (250, 253760), (260, 244000), (305, 208000), (320, 198250), (325, 195200), (400, 158600), (416, 152500), (488, 130000), (500, 126880), (520, 122000), (610, 104000), (625, 101504), (640, 99125), (650, 97600), (793, 80000), (800, 79300), (832, 76250), (976, 65000), (1000, 63440), (1040, 61000), (1220, 52000), (1250, 50752), (1300, 48800), (1525, 41600), (1586, 40000), (1600, 39650), (1625, 39040), (1664, 38125), (1952, 32500), (2000, 31720), (2080, 30500), (2440, 26000), (2500, 25376), (2600, 24400), (3050, 20800), (3172, 20000), (3200, 19825), (3250, 19520), (3904, 16250), (3965, 16000), (4000, 15860), (4160, 15250), (4880, 13000), (5000, 12688), (5200, 12200), (6100, 10400), (6344, 10000), (6500, 9760), (7625, 8320), (7808, 8125), (7930, 8000)]