128067272

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{390449}}^1$

素因数の和:390496

約数の個数: 16

約数和(自身を含む): 245983500

約数和(自身を除く): 117916228

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 390449, 780898, 1561796, 3123592, 16008409, 32016818, 64033636, 128067272]

約数ペア:

[(1, 128067272), (2, 64033636), (4, 32016818), (8, 16008409), (41, 3123592), (82, 1561796), (164, 780898), (328, 390449)]