131223568

素因数分解:

$2^4\times 7^3\times {\mathrm{23911}}^1$

素因数の和:23940

約数の個数: 40

約数和(自身を含む): 296508800

約数和(自身を除く): 165285232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 5488, 23911, 47822, 95644, 167377, 191288, 334754, 382576, 669508, 1171639, 1339016, 2343278, 2678032, 4686556, 8201473, 9373112, 16402946, 18746224, 32805892, 65611784, 131223568]

約数ペア:

[(1, 131223568), (2, 65611784), (4, 32805892), (7, 18746224), (8, 16402946), (14, 9373112), (16, 8201473), (28, 4686556), (49, 2678032), (56, 2343278), (98, 1339016), (112, 1171639), (196, 669508), (343, 382576), (392, 334754), (686, 191288), (784, 167377), (1372, 95644), (2744, 47822), (5488, 23911)]