39405640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11069}}^1$

素因数の和:11169

約数の個数: 32

約数和(自身を含む): 89667000

約数和(自身を除く): 50261360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 11069, 22138, 44276, 55345, 88552, 110690, 221380, 442760, 985141, 1970282, 3940564, 4925705, 7881128, 9851410, 19702820, 39405640]

約数ペア:

[(1, 39405640), (2, 19702820), (4, 9851410), (5, 7881128), (8, 4925705), (10, 3940564), (20, 1970282), (40, 985141), (89, 442760), (178, 221380), (356, 110690), (445, 88552), (712, 55345), (890, 44276), (1780, 22138), (3560, 11069)]