280838145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 561807360

約数和(自身を除く): 280969215

約数列:

[1, 3, 5, 7, 15, 19, 21, 31, 35, 57, 93, 95, 105, 133, 155, 217, 239, 285, 361, 399, 465, 589, 651, 665, 717, 1083, 1085, 1195, 1673, 1767, 1805, 1995, 2527, 2945, 3255, 3585, 4123, 4541, 5019, 5415, 7409, 7581, 8365, 8835, 11191, 12369, 12635, 13623, 20615, 22227, 22705, 25095, 31787, 33573, 37045, 37905, 51863, 55955, 61845, 68115, 78337, 86279, 95361, 111135, 140771, 155589, 158935, 167865, 235011, 258837, 259315, 391685, 422313, 431395, 476805, 603953, 703855, 777945, 985397, 1175055, 1294185, 1811859, 2111565, 2674649, 2956191, 3019765, 4926985, 8023947, 9059295, 13373245, 14780955, 18722543, 40119735, 56167629, 93612715, 280838145]

約数ペア:

[(1, 280838145), (3, 93612715), (5, 56167629), (7, 40119735), (15, 18722543), (19, 14780955), (21, 13373245), (31, 9059295), (35, 8023947), (57, 4926985), (93, 3019765), (95, 2956191), (105, 2674649), (133, 2111565), (155, 1811859), (217, 1294185), (239, 1175055), (285, 985397), (361, 777945), (399, 703855), (465, 603953), (589, 476805), (651, 431395), (665, 422313), (717, 391685), (1083, 259315), (1085, 258837), (1195, 235011), (1673, 167865), (1767, 158935), (1805, 155589), (1995, 140771), (2527, 111135), (2945, 95361), (3255, 86279), (3585, 78337), (4123, 68115), (4541, 61845), (5019, 55955), (5415, 51863), (7409, 37905), (7581, 37045), (8365, 33573), (8835, 31787), (11191, 25095), (12369, 22705), (12635, 22227), (13623, 20615)]