221264440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149503}}^1$

素因数の和:149551

約数の個数: 32

約数和(自身を含む): 511303680

約数和(自身を除く): 290039240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 149503, 299006, 598012, 747515, 1196024, 1495030, 2990060, 5531611, 5980120, 11063222, 22126444, 27658055, 44252888, 55316110, 110632220, 221264440]

約数ペア:

[(1, 221264440), (2, 110632220), (4, 55316110), (5, 44252888), (8, 27658055), (10, 22126444), (20, 11063222), (37, 5980120), (40, 5531611), (74, 2990060), (148, 1495030), (185, 1196024), (296, 747515), (370, 598012), (740, 299006), (1480, 149503)]