161570440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{56891}}^1$

素因数の和:56973

約数の個数: 32

約数和(自身を含む): 368660160

約数和(自身を除く): 207089720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 56891, 113782, 227564, 284455, 455128, 568910, 1137820, 2275640, 4039261, 8078522, 16157044, 20196305, 32314088, 40392610, 80785220, 161570440]

約数ペア:

[(1, 161570440), (2, 80785220), (4, 40392610), (5, 32314088), (8, 20196305), (10, 16157044), (20, 8078522), (40, 4039261), (71, 2275640), (142, 1137820), (284, 568910), (355, 455128), (568, 284455), (710, 227564), (1420, 113782), (2840, 56891)]