64465775

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:344

約数の個数: 36

約数和(自身を含む): 89155752

約数和(自身を除く): 24689977

約数列:

[1, 5, 11, 25, 55, 101, 121, 211, 275, 505, 605, 1055, 1111, 2321, 2525, 3025, 5275, 5555, 11605, 12221, 21311, 25531, 27775, 58025, 61105, 106555, 127655, 234421, 305525, 532775, 638275, 1172105, 2578631, 5860525, 12893155, 64465775]

約数ペア:

[(1, 64465775), (5, 12893155), (11, 5860525), (25, 2578631), (55, 1172105), (101, 638275), (121, 532775), (211, 305525), (275, 234421), (505, 127655), (605, 106555), (1055, 61105), (1111, 58025), (2321, 27775), (2525, 25531), (3025, 21311), (5275, 12221), (5555, 11605)]