25782040

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1531}}^1$

素因数の和:1963

約数の個数: 32

約数和(自身を含む): 58185360

約数和(自身を除く): 32403320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1531, 1684, 2105, 3062, 3368, 4210, 6124, 7655, 8420, 12248, 15310, 16840, 30620, 61240, 644551, 1289102, 2578204, 3222755, 5156408, 6445510, 12891020, 25782040]

約数ペア:

[(1, 25782040), (2, 12891020), (4, 6445510), (5, 5156408), (8, 3222755), (10, 2578204), (20, 1289102), (40, 644551), (421, 61240), (842, 30620), (1531, 16840), (1684, 15310), (2105, 12248), (3062, 8420), (3368, 7655), (4210, 6124)]