639335918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1\times {\mathrm{967}}^1$

素因数の和:1472

約数の個数: 32

約数和(自身を含む): 1053803520

約数和(自身を除く): 414467602

約数列:

[1, 2, 13, 26, 59, 118, 431, 767, 862, 967, 1534, 1934, 5603, 11206, 12571, 25142, 25429, 50858, 57053, 114106, 330577, 416777, 661154, 741689, 833554, 1483378, 5418101, 10836202, 24589843, 49179686, 319667959, 639335918]

約数ペア:

[(1, 639335918), (2, 319667959), (13, 49179686), (26, 24589843), (59, 10836202), (118, 5418101), (431, 1483378), (767, 833554), (862, 741689), (967, 661154), (1534, 416777), (1934, 330577), (5603, 114106), (11206, 57053), (12571, 50858), (25142, 25429)]