30937640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{17987}}^1$

素因数の和:18041

約数の個数: 32

約数和(自身を含む): 71232480

約数和(自身を除く): 40294840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 17987, 35974, 71948, 89935, 143896, 179870, 359740, 719480, 773441, 1546882, 3093764, 3867205, 6187528, 7734410, 15468820, 30937640]

約数ペア:

[(1, 30937640), (2, 15468820), (4, 7734410), (5, 6187528), (8, 3867205), (10, 3093764), (20, 1546882), (40, 773441), (43, 719480), (86, 359740), (172, 179870), (215, 143896), (344, 89935), (430, 71948), (860, 35974), (1720, 17987)]