1643395

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{193}}^1$

素因数の和:342

約数の個数: 16

約数和(自身を含む): 2151072

約数和(自身を除く): 507677

約数列:

[1, 5, 13, 65, 131, 193, 655, 965, 1703, 2509, 8515, 12545, 25283, 126415, 328679, 1643395]

約数ペア:

[(1, 1643395), (5, 328679), (13, 126415), (65, 25283), (131, 12545), (193, 8515), (655, 2509), (965, 1703)]