12178205

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 16982784

約数和(自身を除く): 4804579

約数列:

[1, 5, 13, 17, 65, 85, 103, 107, 221, 515, 535, 1105, 1339, 1391, 1751, 1819, 6695, 6955, 8755, 9095, 11021, 22763, 23647, 55105, 113815, 118235, 143273, 187357, 716365, 936785, 2435641, 12178205]

約数ペア:

[(1, 12178205), (5, 2435641), (13, 936785), (17, 716365), (65, 187357), (85, 143273), (103, 118235), (107, 113815), (221, 55105), (515, 23647), (535, 22763), (1105, 11021), (1339, 9095), (1391, 8755), (1751, 6955), (1819, 6695)]