215667280

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{23857}}^1$

素因数の和:23983

約数の個数: 40

約数和(自身を含む): 505885032

約数和(自身を除く): 290217752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2260, 4520, 9040, 23857, 47714, 95428, 119285, 190856, 238570, 381712, 477140, 954280, 1908560, 2695841, 5391682, 10783364, 13479205, 21566728, 26958410, 43133456, 53916820, 107833640, 215667280]

約数ペア:

[(1, 215667280), (2, 107833640), (4, 53916820), (5, 43133456), (8, 26958410), (10, 21566728), (16, 13479205), (20, 10783364), (40, 5391682), (80, 2695841), (113, 1908560), (226, 954280), (452, 477140), (565, 381712), (904, 238570), (1130, 190856), (1808, 119285), (2260, 95428), (4520, 47714), (9040, 23857)]