90991565

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 141419520

約数和(自身を除く): 50427955

約数列:

[1, 5, 7, 17, 23, 35, 61, 85, 109, 115, 119, 161, 305, 391, 427, 545, 595, 763, 805, 1037, 1403, 1853, 1955, 2135, 2507, 2737, 3815, 5185, 6649, 7015, 7259, 9265, 9821, 12535, 12971, 13685, 17549, 23851, 33245, 36295, 42619, 46543, 49105, 64855, 87745, 113033, 119255, 152927, 166957, 213095, 232715, 298333, 565165, 764635, 791231, 834785, 1070489, 1491665, 2599759, 3956155, 5352445, 12998795, 18198313, 90991565]

約数ペア:

[(1, 90991565), (5, 18198313), (7, 12998795), (17, 5352445), (23, 3956155), (35, 2599759), (61, 1491665), (85, 1070489), (109, 834785), (115, 791231), (119, 764635), (161, 565165), (305, 298333), (391, 232715), (427, 213095), (545, 166957), (595, 152927), (763, 119255), (805, 113033), (1037, 87745), (1403, 64855), (1853, 49105), (1955, 46543), (2135, 42619), (2507, 36295), (2737, 33245), (3815, 23851), (5185, 17549), (6649, 13685), (7015, 12971), (7259, 12535), (9265, 9821)]