1290340

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 2734200

約数和(自身を除く): 1443860

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 433, 596, 745, 866, 1490, 1732, 2165, 2980, 4330, 8660, 64517, 129034, 258068, 322585, 645170, 1290340]

約数ペア:

[(1, 1290340), (2, 645170), (4, 322585), (5, 258068), (10, 129034), (20, 64517), (149, 8660), (298, 4330), (433, 2980), (596, 2165), (745, 1732), (866, 1490)]