681973820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{39239}}^1$

素因数の和:39338

約数の個数: 48

約数和(自身を含む): 1582156800

約数和(自身を除く): 900182980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 4345, 8690, 17380, 39239, 78478, 156956, 196195, 392390, 431629, 784780, 863258, 1726516, 2158145, 3099881, 4316290, 6199762, 8632580, 12399524, 15499405, 30998810, 34098691, 61997620, 68197382, 136394764, 170493455, 340986910, 681973820]

約数ペア:

[(1, 681973820), (2, 340986910), (4, 170493455), (5, 136394764), (10, 68197382), (11, 61997620), (20, 34098691), (22, 30998810), (44, 15499405), (55, 12399524), (79, 8632580), (110, 6199762), (158, 4316290), (220, 3099881), (316, 2158145), (395, 1726516), (790, 863258), (869, 784780), (1580, 431629), (1738, 392390), (3476, 196195), (4345, 156956), (8690, 78478), (17380, 39239)]