25697680

素因数分解:

$2^4\times 5^1\times {\mathrm{321221}}^1$

素因数の和:321234

約数の個数: 20

約数和(自身を含む): 59747292

約数和(自身を除く): 34049612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 321221, 642442, 1284884, 1606105, 2569768, 3212210, 5139536, 6424420, 12848840, 25697680]

約数ペア:

[(1, 25697680), (2, 12848840), (4, 6424420), (5, 5139536), (8, 3212210), (10, 2569768), (16, 1606105), (20, 1284884), (40, 642442), (80, 321221)]