248420980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{400679}}^1$

素因数の和:400719

約数の個数: 24

約数和(自身を含む): 538513920

約数和(自身を除く): 290092940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 400679, 801358, 1602716, 2003395, 4006790, 8013580, 12421049, 24842098, 49684196, 62105245, 124210490, 248420980]

約数ペア:

[(1, 248420980), (2, 124210490), (4, 62105245), (5, 49684196), (10, 24842098), (20, 12421049), (31, 8013580), (62, 4006790), (124, 2003395), (155, 1602716), (310, 801358), (620, 400679)]