207403720

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:622

約数の個数: 64

約数和(自身を含む): 476280000

約数和(自身を除く): 268876280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 179, 332, 349, 358, 415, 664, 698, 716, 830, 895, 1396, 1432, 1660, 1745, 1790, 2792, 3320, 3490, 3580, 6980, 7160, 13960, 14857, 28967, 29714, 57934, 59428, 62471, 74285, 115868, 118856, 124942, 144835, 148570, 231736, 249884, 289670, 297140, 312355, 499768, 579340, 594280, 624710, 1158680, 1249420, 2498840, 5185093, 10370186, 20740372, 25925465, 41480744, 51850930, 103701860, 207403720]

約数ペア:

[(1, 207403720), (2, 103701860), (4, 51850930), (5, 41480744), (8, 25925465), (10, 20740372), (20, 10370186), (40, 5185093), (83, 2498840), (166, 1249420), (179, 1158680), (332, 624710), (349, 594280), (358, 579340), (415, 499768), (664, 312355), (698, 297140), (716, 289670), (830, 249884), (895, 231736), (1396, 148570), (1432, 144835), (1660, 124942), (1745, 118856), (1790, 115868), (2792, 74285), (3320, 62471), (3490, 59428), (3580, 57934), (6980, 29714), (7160, 28967), (13960, 14857)]