81131325

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2287}}^1$

素因数の和:2354

約数の個数: 48

約数和(自身を含む): 149799936

約数和(自身を除く): 68668611

約数列:

[1, 3, 5, 11, 15, 25, 33, 43, 55, 75, 129, 165, 215, 275, 473, 645, 825, 1075, 1419, 2287, 2365, 3225, 6861, 7095, 11435, 11825, 25157, 34305, 35475, 57175, 75471, 98341, 125785, 171525, 295023, 377355, 491705, 628925, 1081751, 1475115, 1886775, 2458525, 3245253, 5408755, 7375575, 16226265, 27043775, 81131325]

約数ペア:

[(1, 81131325), (3, 27043775), (5, 16226265), (11, 7375575), (15, 5408755), (25, 3245253), (33, 2458525), (43, 1886775), (55, 1475115), (75, 1081751), (129, 628925), (165, 491705), (215, 377355), (275, 295023), (473, 171525), (645, 125785), (825, 98341), (1075, 75471), (1419, 57175), (2287, 35475), (2365, 34305), (3225, 25157), (6861, 11825), (7095, 11435)]