20125325

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{6653}}^1$

素因数の和:6685

約数の個数: 18

約数和(自身を含む): 27434442

約数和(自身を除く): 7309117

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 6653, 33265, 73183, 166325, 365915, 805013, 1829575, 4025065, 20125325]

約数ペア:

[(1, 20125325), (5, 4025065), (11, 1829575), (25, 805013), (55, 365915), (121, 166325), (275, 73183), (605, 33265), (3025, 6653)]