20917366852

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1\times {\mathrm{1609}}^1$

素因数の和:2060

約数の個数: 48

約数和(自身を含む): 37379614720

約数和(自身を除く): 16462247868

約数列:

[1, 2, 4, 127, 157, 163, 254, 314, 326, 508, 628, 652, 1609, 3218, 6436, 19939, 20701, 25591, 39878, 41402, 51182, 79756, 82804, 102364, 204343, 252613, 262267, 408686, 505226, 524534, 817372, 1010452, 1049068, 3250057, 6500114, 13000228, 32081851, 33307909, 41175919, 64163702, 66615818, 82351838, 128327404, 133231636, 164703676, 5229341713, 10458683426, 20917366852]

約数ペア:

[(1, 20917366852), (2, 10458683426), (4, 5229341713), (127, 164703676), (157, 133231636), (163, 128327404), (254, 82351838), (314, 66615818), (326, 64163702), (508, 41175919), (628, 33307909), (652, 32081851), (1609, 13000228), (3218, 6500114), (6436, 3250057), (19939, 1049068), (20701, 1010452), (25591, 817372), (39878, 524534), (41402, 505226), (51182, 408686), (79756, 262267), (82804, 252613), (102364, 204343)]