171645980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{2879}}^1$

素因数の和:3170

約数の個数: 48

約数和(自身を含む): 394813440

約数和(自身を除く): 223167460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 271, 542, 1084, 1355, 2710, 2879, 2981, 5420, 5758, 5962, 11516, 11924, 14395, 14905, 28790, 29810, 31669, 57580, 59620, 63338, 126676, 158345, 316690, 633380, 780209, 1560418, 3120836, 3901045, 7802090, 8582299, 15604180, 17164598, 34329196, 42911495, 85822990, 171645980]

約数ペア:

[(1, 171645980), (2, 85822990), (4, 42911495), (5, 34329196), (10, 17164598), (11, 15604180), (20, 8582299), (22, 7802090), (44, 3901045), (55, 3120836), (110, 1560418), (220, 780209), (271, 633380), (542, 316690), (1084, 158345), (1355, 126676), (2710, 63338), (2879, 59620), (2981, 57580), (5420, 31669), (5758, 29810), (5962, 28790), (11516, 14905), (11924, 14395)]