71211820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{2081}}^1$

素因数の和:2178

約数の個数: 48

約数和(自身を含む): 157399200

約数和(自身を除く): 86187380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 59, 116, 118, 145, 236, 290, 295, 580, 590, 1180, 1711, 2081, 3422, 4162, 6844, 8324, 8555, 10405, 17110, 20810, 34220, 41620, 60349, 120698, 122779, 241396, 245558, 301745, 491116, 603490, 613895, 1206980, 1227790, 2455580, 3560591, 7121182, 14242364, 17802955, 35605910, 71211820]

約数ペア:

[(1, 71211820), (2, 35605910), (4, 17802955), (5, 14242364), (10, 7121182), (20, 3560591), (29, 2455580), (58, 1227790), (59, 1206980), (116, 613895), (118, 603490), (145, 491116), (236, 301745), (290, 245558), (295, 241396), (580, 122779), (590, 120698), (1180, 60349), (1711, 41620), (2081, 34220), (3422, 20810), (4162, 17110), (6844, 10405), (8324, 8555)]