31947980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^2$

素因数の和:494

約数の個数: 36

約数和(自身を含む): 69561408

約数和(自身を除く): 37613428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 227, 310, 454, 620, 908, 1135, 2270, 4540, 7037, 14074, 28148, 35185, 51529, 70370, 103058, 140740, 206116, 257645, 515290, 1030580, 1597399, 3194798, 6389596, 7986995, 15973990, 31947980]

約数ペア:

[(1, 31947980), (2, 15973990), (4, 7986995), (5, 6389596), (10, 3194798), (20, 1597399), (31, 1030580), (62, 515290), (124, 257645), (155, 206116), (227, 140740), (310, 103058), (454, 70370), (620, 51529), (908, 35185), (1135, 28148), (2270, 14074), (4540, 7037)]