70808180

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{17791}}^1$

素因数の和:17999

約数の個数: 24

約数和(自身を含む): 149452800

約数和(自身を除く): 78644620

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 17791, 35582, 71164, 88955, 177910, 355820, 3540409, 7080818, 14161636, 17702045, 35404090, 70808180]

約数ペア:

[(1, 70808180), (2, 35404090), (4, 17702045), (5, 14161636), (10, 7080818), (20, 3540409), (199, 355820), (398, 177910), (796, 88955), (995, 71164), (1990, 35582), (3980, 17791)]