21310976000

素因数分解:

$2^{12}\times 5^3\times {\mathrm{107}}^1\times {\mathrm{389}}^1$

素因数の和:535

約数の個数: 208

約数和(自身を含む): 53820767520

約数和(自身を除く): 32509791520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 107, 125, 128, 160, 200, 214, 250, 256, 320, 389, 400, 428, 500, 512, 535, 640, 778, 800, 856, 1000, 1024, 1070, 1280, 1556, 1600, 1712, 1945, 2000, 2048, 2140, 2560, 2675, 3112, 3200, 3424, 3890, 4000, 4096, 4280, 5120, 5350, 6224, 6400, 6848, 7780, 8000, 8560, 9725, 10240, 10700, 12448, 12800, 13375, 13696, 15560, 16000, 17120, 19450, 20480, 21400, 24896, 25600, 26750, 27392, 31120, 32000, 34240, 38900, 41623, 42800, 48625, 49792, 51200, 53500, 54784, 62240, 64000, 68480, 77800, 83246, 85600, 97250, 99584, 102400, 107000, 109568, 124480, 128000, 136960, 155600, 166492, 171200, 194500, 199168, 208115, 214000, 219136, 248960, 256000, 273920, 311200, 332984, 342400, 389000, 398336, 416230, 428000, 438272, 497920, 512000, 547840, 622400, 665968, 684800, 778000, 796672, 832460, 856000, 995840, 1040575, 1095680, 1244800, 1331936, 1369600, 1556000, 1593344, 1664920, 1712000, 1991680, 2081150, 2191360, 2489600, 2663872, 2739200, 3112000, 3329840, 3424000, 3983360, 4162300, 4979200, 5202875, 5327744, 5478400, 6224000, 6659680, 6848000, 7966720, 8324600, 9958400, 10405750, 10655488, 10956800, 12448000, 13319360, 13696000, 16649200, 19916800, 20811500, 21310976, 24896000, 26638720, 27392000, 33298400, 39833600, 41623000, 42621952, 49792000, 53277440, 54784000, 66596800, 83246000, 85243904, 99584000, 106554880, 133193600, 166492000, 170487808, 199168000, 213109760, 266387200, 332984000, 426219520, 532774400, 665968000, 852439040, 1065548800, 1331936000, 2131097600, 2663872000, 4262195200, 5327744000, 10655488000, 21310976000]

約数ペア:

[(1, 21310976000), (2, 10655488000), (4, 5327744000), (5, 4262195200), (8, 2663872000), (10, 2131097600), (16, 1331936000), (20, 1065548800), (25, 852439040), (32, 665968000), (40, 532774400), (50, 426219520), (64, 332984000), (80, 266387200), (100, 213109760), (107, 199168000), (125, 170487808), (128, 166492000), (160, 133193600), (200, 106554880), (214, 99584000), (250, 85243904), (256, 83246000), (320, 66596800), (389, 54784000), (400, 53277440), (428, 49792000), (500, 42621952), (512, 41623000), (535, 39833600), (640, 33298400), (778, 27392000), (800, 26638720), (856, 24896000), (1000, 21310976), (1024, 20811500), (1070, 19916800), (1280, 16649200), (1556, 13696000), (1600, 13319360), (1712, 12448000), (1945, 10956800), (2000, 10655488), (2048, 10405750), (2140, 9958400), (2560, 8324600), (2675, 7966720), (3112, 6848000), (3200, 6659680), (3424, 6224000), (3890, 5478400), (4000, 5327744), (4096, 5202875), (4280, 4979200), (5120, 4162300), (5350, 3983360), (6224, 3424000), (6400, 3329840), (6848, 3112000), (7780, 2739200), (8000, 2663872), (8560, 2489600), (9725, 2191360), (10240, 2081150), (10700, 1991680), (12448, 1712000), (12800, 1664920), (13375, 1593344), (13696, 1556000), (15560, 1369600), (16000, 1331936), (17120, 1244800), (19450, 1095680), (20480, 1040575), (21400, 995840), (24896, 856000), (25600, 832460), (26750, 796672), (27392, 778000), (31120, 684800), (32000, 665968), (34240, 622400), (38900, 547840), (41623, 512000), (42800, 497920), (48625, 438272), (49792, 428000), (51200, 416230), (53500, 398336), (54784, 389000), (62240, 342400), (64000, 332984), (68480, 311200), (77800, 273920), (83246, 256000), (85600, 248960), (97250, 219136), (99584, 214000), (102400, 208115), (107000, 199168), (109568, 194500), (124480, 171200), (128000, 166492), (136960, 155600)]