163957420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{67751}}^1$

素因数の和:67782

約数の個数: 36

約数和(自身を含む): 378462672

約数和(自身を除く): 214505252

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 67751, 135502, 271004, 338755, 677510, 745261, 1355020, 1490522, 2981044, 3726305, 7452610, 8197871, 14905220, 16395742, 32791484, 40989355, 81978710, 163957420]

約数ペア:

[(1, 163957420), (2, 81978710), (4, 40989355), (5, 32791484), (10, 16395742), (11, 14905220), (20, 8197871), (22, 7452610), (44, 3726305), (55, 2981044), (110, 1490522), (121, 1355020), (220, 745261), (242, 677510), (484, 338755), (605, 271004), (1210, 135502), (2420, 67751)]