61709480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{220391}}^1$

素因数の和:220409

約数の個数: 32

約数和(自身を含む): 158682240

約数和(自身を除く): 96972760

約数列:

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

約数ペア:

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