64231405

素因数分解:

$5^1\times 7^2\times {\mathrm{409}}^1\times {\mathrm{641}}^1$

素因数の和:1069

約数の個数: 24

約数和(自身を含む): 90021240

約数和(自身を除く): 25789835

約数列:

[1, 5, 7, 35, 49, 245, 409, 641, 2045, 2863, 3205, 4487, 14315, 20041, 22435, 31409, 100205, 157045, 262169, 1310845, 1835183, 9175915, 12846281, 64231405]

約数ペア:

[(1, 64231405), (5, 12846281), (7, 9175915), (35, 1835183), (49, 1310845), (245, 262169), (409, 157045), (641, 100205), (2045, 31409), (2863, 22435), (3205, 20041), (4487, 14315)]