90451960

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{13873}}^1$

素因数の和:14047

約数の個数: 32

約数和(自身を含む): 204780240

約数和(自身を除く): 114328280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 13873, 27746, 55492, 69365, 110984, 138730, 277460, 554920, 2261299, 4522598, 9045196, 11306495, 18090392, 22612990, 45225980, 90451960]

約数ペア:

[(1, 90451960), (2, 45225980), (4, 22612990), (5, 18090392), (8, 11306495), (10, 9045196), (20, 4522598), (40, 2261299), (163, 554920), (326, 277460), (652, 138730), (815, 110984), (1304, 69365), (1630, 55492), (3260, 27746), (6520, 13873)]