20284825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4339}}^1$

素因数の和:4377

約数の個数: 24

約数和(自身を含む): 29060640

約数和(自身を除く): 8775815

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4339, 4675, 21695, 47729, 73763, 108475, 238645, 368815, 811393, 1193225, 1844075, 4056965, 20284825]

約数ペア:

[(1, 20284825), (5, 4056965), (11, 1844075), (17, 1193225), (25, 811393), (55, 368815), (85, 238645), (187, 108475), (275, 73763), (425, 47729), (935, 21695), (4339, 4675)]