879220520

素因数分解:

$2^3\times 5^1\times {\mathrm{21980513}}^1$

素因数の和:21980524

約数の個数: 16

約数和(自身を含む): 1978246260

約数和(自身を除く): 1099025740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21980513, 43961026, 87922052, 109902565, 175844104, 219805130, 439610260, 879220520]

約数ペア:

[(1, 879220520), (2, 439610260), (4, 219805130), (5, 175844104), (8, 109902565), (10, 87922052), (20, 43961026), (40, 21980513)]