17802860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 38793216

約数和(自身を除く): 20990356

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 127, 163, 172, 215, 254, 326, 430, 508, 635, 652, 815, 860, 1270, 1630, 2540, 3260, 5461, 7009, 10922, 14018, 20701, 21844, 27305, 28036, 35045, 41402, 54610, 70090, 82804, 103505, 109220, 140180, 207010, 414020, 890143, 1780286, 3560572, 4450715, 8901430, 17802860]

約数ペア:

[(1, 17802860), (2, 8901430), (4, 4450715), (5, 3560572), (10, 1780286), (20, 890143), (43, 414020), (86, 207010), (127, 140180), (163, 109220), (172, 103505), (215, 82804), (254, 70090), (326, 54610), (430, 41402), (508, 35045), (635, 28036), (652, 27305), (815, 21844), (860, 20701), (1270, 14018), (1630, 10922), (2540, 7009), (3260, 5461)]