90645040

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{5081}}^1$

素因数の和:5317

約数の個数: 40

約数和(自身を含む): 211736448

約数和(自身を除く): 121091408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 4460, 5081, 8920, 10162, 17840, 20324, 25405, 40648, 50810, 81296, 101620, 203240, 406480, 1133063, 2266126, 4532252, 5665315, 9064504, 11330630, 18129008, 22661260, 45322520, 90645040]

約数ペア:

[(1, 90645040), (2, 45322520), (4, 22661260), (5, 18129008), (8, 11330630), (10, 9064504), (16, 5665315), (20, 4532252), (40, 2266126), (80, 1133063), (223, 406480), (446, 203240), (892, 101620), (1115, 81296), (1784, 50810), (2230, 40648), (3568, 25405), (4460, 20324), (5081, 17840), (8920, 10162)]