80690775

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2081}}^1$

素因数の和:2152

約数の個数: 48

約数和(自身を含む): 148704768

約数和(自身を除く): 68013993

約数列:

[1, 3, 5, 11, 15, 25, 33, 47, 55, 75, 141, 165, 235, 275, 517, 705, 825, 1175, 1551, 2081, 2585, 3525, 6243, 7755, 10405, 12925, 22891, 31215, 38775, 52025, 68673, 97807, 114455, 156075, 293421, 343365, 489035, 572275, 1075877, 1467105, 1716825, 2445175, 3227631, 5379385, 7335525, 16138155, 26896925, 80690775]

約数ペア:

[(1, 80690775), (3, 26896925), (5, 16138155), (11, 7335525), (15, 5379385), (25, 3227631), (33, 2445175), (47, 1716825), (55, 1467105), (75, 1075877), (141, 572275), (165, 489035), (235, 343365), (275, 293421), (517, 156075), (705, 114455), (825, 97807), (1175, 68673), (1551, 52025), (2081, 38775), (2585, 31215), (3525, 22891), (6243, 12925), (7755, 10405)]