40390945

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{4021}}^1$

素因数の和:4081

約数の個数: 24

約数和(自身を含む): 57772008

約数和(自身を除く): 17381063

約数列:

[1, 5, 7, 35, 41, 49, 205, 245, 287, 1435, 2009, 4021, 10045, 20105, 28147, 140735, 164861, 197029, 824305, 985145, 1154027, 5770135, 8078189, 40390945]

約数ペア:

[(1, 40390945), (5, 8078189), (7, 5770135), (35, 1154027), (41, 985145), (49, 824305), (205, 197029), (245, 164861), (287, 140735), (1435, 28147), (2009, 20105), (4021, 10045)]