68402680

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{39769}}^1$

素因数の和:39823

約数の個数: 32

約数和(自身を含む): 157489200

約数和(自身を除く): 89086520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 39769, 79538, 159076, 198845, 318152, 397690, 795380, 1590760, 1710067, 3420134, 6840268, 8550335, 13680536, 17100670, 34201340, 68402680]

約数ペア:

[(1, 68402680), (2, 34201340), (4, 17100670), (5, 13680536), (8, 8550335), (10, 6840268), (20, 3420134), (40, 1710067), (43, 1590760), (86, 795380), (172, 397690), (215, 318152), (344, 198845), (430, 159076), (860, 79538), (1720, 39769)]