40278868

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{20261}}^1$

素因数の和:20343

約数の個数: 24

約数和(自身を含む): 81696384

約数和(自身を除く): 41417516

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 20261, 40522, 81044, 141827, 283654, 567308, 1438531, 2877062, 5754124, 10069717, 20139434, 40278868]

約数ペア:

[(1, 40278868), (2, 20139434), (4, 10069717), (7, 5754124), (14, 2877062), (28, 1438531), (71, 567308), (142, 283654), (284, 141827), (497, 81044), (994, 40522), (1988, 20261)]