5221640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4211}}^1$

素因数の和:4253

約数の個数: 32

約数和(自身を含む): 12130560

約数和(自身を除く): 6908920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 4211, 8422, 16844, 21055, 33688, 42110, 84220, 130541, 168440, 261082, 522164, 652705, 1044328, 1305410, 2610820, 5221640]

約数ペア:

[(1, 5221640), (2, 2610820), (4, 1305410), (5, 1044328), (8, 652705), (10, 522164), (20, 261082), (31, 168440), (40, 130541), (62, 84220), (124, 42110), (155, 33688), (248, 21055), (310, 16844), (620, 8422), (1240, 4211)]