256220900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{15161}}^1$

素因数の和:15201

約数の個数: 54

約数和(自身を含む): 602098182

約数和(自身を除く): 345877282

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 169, 260, 325, 338, 650, 676, 845, 1300, 1690, 3380, 4225, 8450, 15161, 16900, 30322, 60644, 75805, 151610, 197093, 303220, 379025, 394186, 758050, 788372, 985465, 1516100, 1970930, 2562209, 3941860, 4927325, 5124418, 9854650, 10248836, 12811045, 19709300, 25622090, 51244180, 64055225, 128110450, 256220900]

約数ペア:

[(1, 256220900), (2, 128110450), (4, 64055225), (5, 51244180), (10, 25622090), (13, 19709300), (20, 12811045), (25, 10248836), (26, 9854650), (50, 5124418), (52, 4927325), (65, 3941860), (100, 2562209), (130, 1970930), (169, 1516100), (260, 985465), (325, 788372), (338, 758050), (650, 394186), (676, 379025), (845, 303220), (1300, 197093), (1690, 151610), (3380, 75805), (4225, 60644), (8450, 30322), (15161, 16900)]