8160040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{193}}^1$

素因数の和:362

約数の個数: 64

約数和(自身を含む): 21231360

約数和(自身を除く): 13071320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 151, 193, 280, 302, 386, 604, 755, 772, 965, 1057, 1208, 1351, 1510, 1544, 1930, 2114, 2702, 3020, 3860, 4228, 5285, 5404, 6040, 6755, 7720, 8456, 10570, 10808, 13510, 21140, 27020, 29143, 42280, 54040, 58286, 116572, 145715, 204001, 233144, 291430, 408002, 582860, 816004, 1020005, 1165720, 1632008, 2040010, 4080020, 8160040]

約数ペア:

[(1, 8160040), (2, 4080020), (4, 2040010), (5, 1632008), (7, 1165720), (8, 1020005), (10, 816004), (14, 582860), (20, 408002), (28, 291430), (35, 233144), (40, 204001), (56, 145715), (70, 116572), (140, 58286), (151, 54040), (193, 42280), (280, 29143), (302, 27020), (386, 21140), (604, 13510), (755, 10808), (772, 10570), (965, 8456), (1057, 7720), (1208, 6755), (1351, 6040), (1510, 5404), (1544, 5285), (1930, 4228), (2114, 3860), (2702, 3020)]