397776125

素因数分解:

$5^3\times {\mathrm{199}}^1\times {\mathrm{15991}}^1$

素因数の和:16205

約数の個数: 16

約数和(自身を含む): 498950400

約数和(自身を除く): 101174275

約数列:

[1, 5, 25, 125, 199, 995, 4975, 15991, 24875, 79955, 399775, 1998875, 3182209, 15911045, 79555225, 397776125]

約数ペア:

[(1, 397776125), (5, 79555225), (25, 15911045), (125, 3182209), (199, 1998875), (995, 399775), (4975, 79955), (15991, 24875)]