408464753456

素因数分解:

$2^4\times {\mathrm{1999}}^1\times {\mathrm{12770909}}^1$

素因数の和:12772916

約数の個数: 20

約数和(自身を含む): 791796420000

約数和(自身を除く): 383331666544

約数列:

[1, 2, 4, 8, 16, 1999, 3998, 7996, 15992, 31984, 12770909, 25541818, 51083636, 102167272, 204334544, 25529047091, 51058094182, 102116188364, 204232376728, 408464753456]

約数ペア:

[(1, 408464753456), (2, 204232376728), (4, 102116188364), (8, 51058094182), (16, 25529047091), (1999, 204334544), (3998, 102167272), (7996, 51083636), (15992, 25541818), (31984, 12770909)]