890221575

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:385

約数の個数: 96

約数和(自身を含む): 1631895552

約数和(自身を除く): 741673977

約数列:

[1, 3, 5, 15, 17, 25, 31, 51, 75, 85, 93, 101, 155, 223, 255, 303, 425, 465, 505, 527, 669, 775, 1115, 1275, 1515, 1581, 1717, 2325, 2525, 2635, 3131, 3345, 3791, 5151, 5575, 6913, 7575, 7905, 8585, 9393, 11373, 13175, 15655, 16725, 18955, 20739, 22523, 25755, 34565, 39525, 42925, 46965, 53227, 56865, 67569, 78275, 94775, 103695, 112615, 117521, 128775, 159681, 172825, 234825, 266135, 284325, 337845, 352563, 382891, 518475, 563075, 587605, 698213, 798405, 1148673, 1330675, 1689225, 1762815, 1914455, 2094639, 2938025, 3491065, 3992025, 5743365, 8814075, 9572275, 10473195, 11869621, 17455325, 28716825, 35608863, 52365975, 59348105, 178044315, 296740525, 890221575]

約数ペア:

[(1, 890221575), (3, 296740525), (5, 178044315), (15, 59348105), (17, 52365975), (25, 35608863), (31, 28716825), (51, 17455325), (75, 11869621), (85, 10473195), (93, 9572275), (101, 8814075), (155, 5743365), (223, 3992025), (255, 3491065), (303, 2938025), (425, 2094639), (465, 1914455), (505, 1762815), (527, 1689225), (669, 1330675), (775, 1148673), (1115, 798405), (1275, 698213), (1515, 587605), (1581, 563075), (1717, 518475), (2325, 382891), (2525, 352563), (2635, 337845), (3131, 284325), (3345, 266135), (3791, 234825), (5151, 172825), (5575, 159681), (6913, 128775), (7575, 117521), (7905, 112615), (8585, 103695), (9393, 94775), (11373, 78275), (13175, 67569), (15655, 56865), (16725, 53227), (18955, 46965), (20739, 42925), (22523, 39525), (25755, 34565)]