157427660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{20879}}^1$

素因数の和:20930

約数の個数: 48

約数和(自身を含む): 368323200

約数和(自身を除く): 210895540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 20879, 41758, 83516, 104395, 208790, 271427, 417580, 542854, 605491, 1085708, 1210982, 1357135, 2421964, 2714270, 3027455, 5428540, 6054910, 7871383, 12109820, 15742766, 31485532, 39356915, 78713830, 157427660]

約数ペア:

[(1, 157427660), (2, 78713830), (4, 39356915), (5, 31485532), (10, 15742766), (13, 12109820), (20, 7871383), (26, 6054910), (29, 5428540), (52, 3027455), (58, 2714270), (65, 2421964), (116, 1357135), (130, 1210982), (145, 1085708), (260, 605491), (290, 542854), (377, 417580), (580, 271427), (754, 208790), (1508, 104395), (1885, 83516), (3770, 41758), (7540, 20879)]