4491020

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{521}}^1$

素因数の和:961

約数の個数: 24

約数和(自身を含む): 9471168

約数和(自身を除く): 4980148

約数列:

[1, 2, 4, 5, 10, 20, 431, 521, 862, 1042, 1724, 2084, 2155, 2605, 4310, 5210, 8620, 10420, 224551, 449102, 898204, 1122755, 2245510, 4491020]

約数ペア:

[(1, 4491020), (2, 2245510), (4, 1122755), (5, 898204), (10, 449102), (20, 224551), (431, 10420), (521, 8620), (862, 5210), (1042, 4310), (1724, 2605), (2084, 2155)]