20022040

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3821}}^1$

素因数の和:3963

約数の個数: 32

約数和(自身を含む): 45405360

約数和(自身を除く): 25383320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 3821, 5240, 7642, 15284, 19105, 30568, 38210, 76420, 152840, 500551, 1001102, 2002204, 2502755, 4004408, 5005510, 10011020, 20022040]

約数ペア:

[(1, 20022040), (2, 10011020), (4, 5005510), (5, 4004408), (8, 2502755), (10, 2002204), (20, 1001102), (40, 500551), (131, 152840), (262, 76420), (524, 38210), (655, 30568), (1048, 19105), (1310, 15284), (2620, 7642), (3821, 5240)]