42259640

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{5309}}^1$

素因数の和:5519

約数の個数: 32

約数和(自身を含む): 95580000

約数和(自身を除く): 53320360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 5309, 7960, 10618, 21236, 26545, 42472, 53090, 106180, 212360, 1056491, 2112982, 4225964, 5282455, 8451928, 10564910, 21129820, 42259640]

約数ペア:

[(1, 42259640), (2, 21129820), (4, 10564910), (5, 8451928), (8, 5282455), (10, 4225964), (20, 2112982), (40, 1056491), (199, 212360), (398, 106180), (796, 53090), (995, 42472), (1592, 26545), (1990, 21236), (3980, 10618), (5309, 7960)]