56428040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{619}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 132580800

約数和(自身を除く): 76152760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 344, 424, 430, 530, 619, 860, 1060, 1238, 1720, 2120, 2279, 2476, 3095, 4558, 4952, 6190, 9116, 11395, 12380, 18232, 22790, 24760, 26617, 32807, 45580, 53234, 65614, 91160, 106468, 131228, 133085, 164035, 212936, 262456, 266170, 328070, 532340, 656140, 1064680, 1312280, 1410701, 2821402, 5642804, 7053505, 11285608, 14107010, 28214020, 56428040]

約数ペア:

[(1, 56428040), (2, 28214020), (4, 14107010), (5, 11285608), (8, 7053505), (10, 5642804), (20, 2821402), (40, 1410701), (43, 1312280), (53, 1064680), (86, 656140), (106, 532340), (172, 328070), (212, 266170), (215, 262456), (265, 212936), (344, 164035), (424, 133085), (430, 131228), (530, 106468), (619, 91160), (860, 65614), (1060, 53234), (1238, 45580), (1720, 32807), (2120, 26617), (2279, 24760), (2476, 22790), (3095, 18232), (4558, 12380), (4952, 11395), (6190, 9116)]