216242980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{348779}}^1$

素因数の和:348819

約数の個数: 24

約数和(自身を含む): 468760320

約数和(自身を除く): 252517340

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 348779, 697558, 1395116, 1743895, 3487790, 6975580, 10812149, 21624298, 43248596, 54060745, 108121490, 216242980]

約数ペア:

[(1, 216242980), (2, 108121490), (4, 54060745), (5, 43248596), (10, 21624298), (20, 10812149), (31, 6975580), (62, 3487790), (124, 1743895), (155, 1395116), (310, 697558), (620, 348779)]