643048240

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{739}}^1$

素因数の和:974

約数の個数: 80

約数和(自身を含む): 1527804000

約数和(自身を除く): 884755760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 149, 292, 298, 365, 584, 596, 730, 739, 745, 1168, 1192, 1460, 1478, 1490, 2384, 2920, 2956, 2980, 3695, 5840, 5912, 5960, 7390, 10877, 11824, 11920, 14780, 21754, 29560, 43508, 53947, 54385, 59120, 87016, 107894, 108770, 110111, 174032, 215788, 217540, 220222, 269735, 431576, 435080, 440444, 539470, 550555, 863152, 870160, 880888, 1078940, 1101110, 1761776, 2157880, 2202220, 4315760, 4404440, 8038103, 8808880, 16076206, 32152412, 40190515, 64304824, 80381030, 128609648, 160762060, 321524120, 643048240]

約数ペア:

[(1, 643048240), (2, 321524120), (4, 160762060), (5, 128609648), (8, 80381030), (10, 64304824), (16, 40190515), (20, 32152412), (40, 16076206), (73, 8808880), (80, 8038103), (146, 4404440), (149, 4315760), (292, 2202220), (298, 2157880), (365, 1761776), (584, 1101110), (596, 1078940), (730, 880888), (739, 870160), (745, 863152), (1168, 550555), (1192, 539470), (1460, 440444), (1478, 435080), (1490, 431576), (2384, 269735), (2920, 220222), (2956, 217540), (2980, 215788), (3695, 174032), (5840, 110111), (5912, 108770), (5960, 107894), (7390, 87016), (10877, 59120), (11824, 54385), (11920, 53947), (14780, 43508), (21754, 29560)]