28757925

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:104

約数の個数: 108

約数和(自身を含む): 64028640

約数和(自身を除く): 35270715

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 25, 31, 35, 45, 57, 63, 75, 93, 95, 105, 133, 155, 171, 175, 217, 225, 279, 285, 315, 399, 465, 475, 525, 589, 651, 665, 775, 855, 961, 1085, 1197, 1395, 1425, 1575, 1767, 1953, 1995, 2325, 2883, 2945, 3255, 3325, 4123, 4275, 4805, 5301, 5425, 5985, 6727, 6975, 8649, 8835, 9765, 9975, 12369, 14415, 14725, 16275, 18259, 20181, 20615, 24025, 26505, 29925, 33635, 37107, 43245, 44175, 48825, 54777, 60543, 61845, 72075, 91295, 100905, 103075, 127813, 132525, 164331, 168175, 185535, 216225, 273885, 302715, 309225, 383439, 456475, 504525, 639065, 821655, 927675, 1150317, 1369425, 1513575, 1917195, 3195325, 4108275, 5751585, 9585975, 28757925]

約数ペア:

[(1, 28757925), (3, 9585975), (5, 5751585), (7, 4108275), (9, 3195325), (15, 1917195), (19, 1513575), (21, 1369425), (25, 1150317), (31, 927675), (35, 821655), (45, 639065), (57, 504525), (63, 456475), (75, 383439), (93, 309225), (95, 302715), (105, 273885), (133, 216225), (155, 185535), (171, 168175), (175, 164331), (217, 132525), (225, 127813), (279, 103075), (285, 100905), (315, 91295), (399, 72075), (465, 61845), (475, 60543), (525, 54777), (589, 48825), (651, 44175), (665, 43245), (775, 37107), (855, 33635), (961, 29925), (1085, 26505), (1197, 24025), (1395, 20615), (1425, 20181), (1575, 18259), (1767, 16275), (1953, 14725), (1995, 14415), (2325, 12369), (2883, 9975), (2945, 9765), (3255, 8835), (3325, 8649), (4123, 6975), (4275, 6727), (4805, 5985), (5301, 5425)]