138260405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{409}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 182256480

約数和(自身を除く): 43996075

約数列:

[1, 5, 17, 41, 85, 97, 205, 409, 485, 697, 1649, 2045, 3485, 3977, 6953, 8245, 16769, 19885, 34765, 39673, 67609, 83845, 198365, 285073, 338045, 674441, 1425365, 1626593, 3372205, 8132965, 27652081, 138260405]

約数ペア:

[(1, 138260405), (5, 27652081), (17, 8132965), (41, 3372205), (85, 1626593), (97, 1425365), (205, 674441), (409, 338045), (485, 285073), (697, 198365), (1649, 83845), (2045, 67609), (3485, 39673), (3977, 34765), (6953, 19885), (8245, 16769)]