90164720

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{11159}}^1$

素因数の和:11273

約数の個数: 40

約数和(自身を含む): 211727520

約数和(自身を除く): 121562800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 11159, 22318, 44636, 55795, 89272, 111590, 178544, 223180, 446360, 892720, 1127059, 2254118, 4508236, 5635295, 9016472, 11270590, 18032944, 22541180, 45082360, 90164720]

約数ペア:

[(1, 90164720), (2, 45082360), (4, 22541180), (5, 18032944), (8, 11270590), (10, 9016472), (16, 5635295), (20, 4508236), (40, 2254118), (80, 1127059), (101, 892720), (202, 446360), (404, 223180), (505, 178544), (808, 111590), (1010, 89272), (1616, 55795), (2020, 44636), (4040, 22318), (8080, 11159)]