12420550

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:217

約数の個数: 48

約数和(自身を含む): 24306480

約数和(自身を除く): 11885930

約数列:

[1, 2, 5, 10, 25, 43, 50, 53, 86, 106, 109, 215, 218, 265, 430, 530, 545, 1075, 1090, 1325, 2150, 2279, 2650, 2725, 4558, 4687, 5450, 5777, 9374, 11395, 11554, 22790, 23435, 28885, 46870, 56975, 57770, 113950, 117175, 144425, 234350, 248411, 288850, 496822, 1242055, 2484110, 6210275, 12420550]

約数ペア:

[(1, 12420550), (2, 6210275), (5, 2484110), (10, 1242055), (25, 496822), (43, 288850), (50, 248411), (53, 234350), (86, 144425), (106, 117175), (109, 113950), (215, 57770), (218, 56975), (265, 46870), (430, 28885), (530, 23435), (545, 22790), (1075, 11554), (1090, 11395), (1325, 9374), (2150, 5777), (2279, 5450), (2650, 4687), (2725, 4558)]