20121550855

素因数分解:

$5^1\times 7^2\times {\mathrm{293}}^1\times {\mathrm{280303}}^1$

素因数の和:280615

約数の個数: 24

約数和(自身を含む): 28184006592

約数和(自身を除く): 8062455737

約数列:

[1, 5, 7, 35, 49, 245, 293, 1465, 2051, 10255, 14357, 71785, 280303, 1401515, 1962121, 9810605, 13734847, 68674235, 82128779, 410643895, 574901453, 2874507265, 4024310171, 20121550855]

約数ペア:

[(1, 20121550855), (5, 4024310171), (7, 2874507265), (35, 574901453), (49, 410643895), (245, 82128779), (293, 68674235), (1465, 13734847), (2051, 9810605), (10255, 1962121), (14357, 1401515), (71785, 280303)]