28130540

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8629}}^1$

素因数の和:8801

約数の個数: 24

約数和(自身を含む): 59443440

約数和(自身を除く): 31312900

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 8629, 17258, 34516, 43145, 86290, 172580, 1406527, 2813054, 5626108, 7032635, 14065270, 28130540]

約数ペア:

[(1, 28130540), (2, 14065270), (4, 7032635), (5, 5626108), (10, 2813054), (20, 1406527), (163, 172580), (326, 86290), (652, 43145), (815, 34516), (1630, 17258), (3260, 8629)]