12737480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{45491}}^1$

素因数の和:45509

約数の個数: 32

約数和(自身を含む): 32754240

約数和(自身を除く): 20016760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 45491, 90982, 181964, 227455, 318437, 363928, 454910, 636874, 909820, 1273748, 1592185, 1819640, 2547496, 3184370, 6368740, 12737480]

約数ペア:

[(1, 12737480), (2, 6368740), (4, 3184370), (5, 2547496), (7, 1819640), (8, 1592185), (10, 1273748), (14, 909820), (20, 636874), (28, 454910), (35, 363928), (40, 318437), (56, 227455), (70, 181964), (140, 90982), (280, 45491)]