648684868

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{401}}^1\times {\mathrm{2393}}^1$

素因数の和:2824

約数の個数: 36

約数和(自身を含む): 1232819028

約数和(自身を除く): 584134160

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 401, 676, 802, 1604, 2393, 4786, 5213, 9572, 10426, 20852, 31109, 62218, 67769, 124436, 135538, 271076, 404417, 808834, 959593, 1617668, 1919186, 3838372, 12474709, 24949418, 49898836, 162171217, 324342434, 648684868]

約数ペア:

[(1, 648684868), (2, 324342434), (4, 162171217), (13, 49898836), (26, 24949418), (52, 12474709), (169, 3838372), (338, 1919186), (401, 1617668), (676, 959593), (802, 808834), (1604, 404417), (2393, 271076), (4786, 135538), (5213, 124436), (9572, 67769), (10426, 62218), (20852, 31109)]