12938690620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{384851}}^1$

素因数の和:384942

約数の個数: 36

約数和(自身を含む): 27850199832

約数和(自身を除く): 14911509212

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1681, 3362, 6724, 8405, 16810, 33620, 384851, 769702, 1539404, 1924255, 3848510, 7697020, 15778891, 31557782, 63115564, 78894455, 157788910, 315577820, 646934531, 1293869062, 2587738124, 3234672655, 6469345310, 12938690620]

約数ペア:

[(1, 12938690620), (2, 6469345310), (4, 3234672655), (5, 2587738124), (10, 1293869062), (20, 646934531), (41, 315577820), (82, 157788910), (164, 78894455), (205, 63115564), (410, 31557782), (820, 15778891), (1681, 7697020), (3362, 3848510), (6724, 1924255), (8405, 1539404), (16810, 769702), (33620, 384851)]