61538960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109891}}^1$

素因数の和:109911

約数の個数: 40

約数和(自身を含む): 163519296

約数和(自身を除く): 101980336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 109891, 219782, 439564, 549455, 769237, 879128, 1098910, 1538474, 1758256, 2197820, 3076948, 3846185, 4395640, 6153896, 7692370, 8791280, 12307792, 15384740, 30769480, 61538960]

約数ペア:

[(1, 61538960), (2, 30769480), (4, 15384740), (5, 12307792), (7, 8791280), (8, 7692370), (10, 6153896), (14, 4395640), (16, 3846185), (20, 3076948), (28, 2197820), (35, 1758256), (40, 1538474), (56, 1098910), (70, 879128), (80, 769237), (112, 549455), (140, 439564), (280, 219782), (560, 109891)]