1990332025

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{28607}}^1$

素因数の和:28662

約数の個数: 36

約数和(自身を含む): 2830818816

約数和(自身を除く): 840486791

約数列:

[1, 5, 11, 23, 25, 55, 115, 121, 253, 275, 575, 605, 1265, 2783, 3025, 6325, 13915, 28607, 69575, 143035, 314677, 657961, 715175, 1573385, 3289805, 3461447, 7237571, 7866925, 16449025, 17307235, 36187855, 79613281, 86536175, 180939275, 398066405, 1990332025]

約数ペア:

[(1, 1990332025), (5, 398066405), (11, 180939275), (23, 86536175), (25, 79613281), (55, 36187855), (115, 17307235), (121, 16449025), (253, 7866925), (275, 7237571), (575, 3461447), (605, 3289805), (1265, 1573385), (2783, 715175), (3025, 657961), (6325, 314677), (13915, 143035), (28607, 69575)]