388756879

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^2\times {\mathrm{479}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 471214080

約数和(自身を除く): 82457201

約数列:

[1, 7, 23, 71, 161, 479, 497, 1633, 3353, 5041, 11017, 11431, 34009, 35287, 77119, 115943, 238063, 782207, 811601, 2414639, 5475449, 16902473, 55536697, 388756879]

約数ペア:

[(1, 388756879), (7, 55536697), (23, 16902473), (71, 5475449), (161, 2414639), (479, 811601), (497, 782207), (1633, 238063), (3353, 115943), (5041, 77119), (11017, 35287), (11431, 34009)]