123418960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{220391}}^1$

素因数の和:220411

約数の個数: 40

約数和(自身を含む): 327943296

約数和(自身を除く): 204524336

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 220391, 440782, 881564, 1101955, 1542737, 1763128, 2203910, 3085474, 3526256, 4407820, 6170948, 7713685, 8815640, 12341896, 15427370, 17631280, 24683792, 30854740, 61709480, 123418960]

約数ペア:

[(1, 123418960), (2, 61709480), (4, 30854740), (5, 24683792), (7, 17631280), (8, 15427370), (10, 12341896), (14, 8815640), (16, 7713685), (20, 6170948), (28, 4407820), (35, 3526256), (40, 3085474), (56, 2203910), (70, 1763128), (80, 1542737), (112, 1101955), (140, 881564), (280, 440782), (560, 220391)]