20144040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23981}}^1$

素因数の和:24002

約数の個数: 64

約数和(自身を含む): 69068160

約数和(自身を除く): 48924120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23981, 47962, 71943, 95924, 119905, 143886, 167867, 191848, 239810, 287772, 335734, 359715, 479620, 503601, 575544, 671468, 719430, 839335, 959240, 1007202, 1342936, 1438860, 1678670, 2014404, 2518005, 2877720, 3357340, 4028808, 5036010, 6714680, 10072020, 20144040]

約数ペア:

[(1, 20144040), (2, 10072020), (3, 6714680), (4, 5036010), (5, 4028808), (6, 3357340), (7, 2877720), (8, 2518005), (10, 2014404), (12, 1678670), (14, 1438860), (15, 1342936), (20, 1007202), (21, 959240), (24, 839335), (28, 719430), (30, 671468), (35, 575544), (40, 503601), (42, 479620), (56, 359715), (60, 335734), (70, 287772), (84, 239810), (105, 191848), (120, 167867), (140, 143886), (168, 119905), (210, 95924), (280, 71943), (420, 47962), (840, 23981)]