278399056

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1338457}}^1$

素因数の和:1338478

約数の個数: 20

約数和(自身を含む): 580890772

約数和(自身を除く): 302491716

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1338457, 2676914, 5353828, 10707656, 17399941, 21415312, 34799882, 69599764, 139199528, 278399056]

約数ペア:

[(1, 278399056), (2, 139199528), (4, 69599764), (8, 34799882), (13, 21415312), (16, 17399941), (26, 10707656), (52, 5353828), (104, 2676914), (208, 1338457)]