201611875

素因数分解:

$5^4\times {\mathrm{199}}^1\times {\mathrm{1621}}^1$

素因数の和:1840

約数の個数: 20

約数和(自身を含む): 253356400

約数和(自身を除く): 51744525

約数列:

[1, 5, 25, 125, 199, 625, 995, 1621, 4975, 8105, 24875, 40525, 124375, 202625, 322579, 1013125, 1612895, 8064475, 40322375, 201611875]

約数ペア:

[(1, 201611875), (5, 40322375), (25, 8064475), (125, 1612895), (199, 1013125), (625, 322579), (995, 202625), (1621, 124375), (4975, 40525), (8105, 24875)]