399183790

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1\times {\mathrm{1409}}^1$

素因数の和:2148

約数の個数: 32

約数和(自身を含む): 737644320

約数和(自身を除く): 338460530

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 691, 1382, 1409, 2818, 3455, 6910, 7045, 14090, 28331, 56662, 57769, 115538, 141655, 283310, 288845, 577690, 973619, 1947238, 4868095, 9736190, 39918379, 79836758, 199591895, 399183790]

約数ペア:

[(1, 399183790), (2, 199591895), (5, 79836758), (10, 39918379), (41, 9736190), (82, 4868095), (205, 1947238), (410, 973619), (691, 577690), (1382, 288845), (1409, 283310), (2818, 141655), (3455, 115538), (6910, 57769), (7045, 56662), (14090, 28331)]