289657840

素因数分解:

$2^4\times 5^1\times {\mathrm{3620723}}^1$

素因数の和:3620736

約数の個数: 20

約数和(自身を含む): 673454664

約数和(自身を除く): 383796824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3620723, 7241446, 14482892, 18103615, 28965784, 36207230, 57931568, 72414460, 144828920, 289657840]

約数ペア:

[(1, 289657840), (2, 144828920), (4, 72414460), (5, 57931568), (8, 36207230), (10, 28965784), (16, 18103615), (20, 14482892), (40, 7241446), (80, 3620723)]