278310825

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 591055920

約数和(自身を除く): 312745095

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 29, 39, 45, 51, 65, 75, 85, 87, 117, 145, 153, 193, 195, 221, 225, 255, 261, 325, 377, 425, 435, 493, 579, 585, 663, 725, 765, 965, 975, 1105, 1131, 1275, 1305, 1479, 1737, 1885, 1989, 2175, 2465, 2509, 2895, 2925, 3281, 3315, 3393, 3825, 4437, 4825, 5525, 5597, 5655, 6409, 6525, 7395, 7527, 8685, 9425, 9843, 9945, 12325, 12545, 14475, 16405, 16575, 16791, 16965, 19227, 22185, 22581, 27985, 28275, 29529, 32045, 36975, 37635, 42653, 43425, 49215, 49725, 50373, 57681, 62725, 72761, 82025, 83955, 84825, 95149, 96135, 110925, 112905, 127959, 139925, 147645, 160225, 188175, 213265, 218283, 246075, 251865, 285447, 288405, 363805, 383877, 419775, 475745, 480675, 564525, 639795, 654849, 738225, 856341, 1066325, 1091415, 1236937, 1259325, 1427235, 1442025, 1819025, 1919385, 2378725, 3198975, 3274245, 3710811, 4281705, 5457075, 6184685, 7136175, 9596925, 11132433, 16371225, 18554055, 21408525, 30923425, 55662165, 92770275, 278310825]

約数ペア:

[(1, 278310825), (3, 92770275), (5, 55662165), (9, 30923425), (13, 21408525), (15, 18554055), (17, 16371225), (25, 11132433), (29, 9596925), (39, 7136175), (45, 6184685), (51, 5457075), (65, 4281705), (75, 3710811), (85, 3274245), (87, 3198975), (117, 2378725), (145, 1919385), (153, 1819025), (193, 1442025), (195, 1427235), (221, 1259325), (225, 1236937), (255, 1091415), (261, 1066325), (325, 856341), (377, 738225), (425, 654849), (435, 639795), (493, 564525), (579, 480675), (585, 475745), (663, 419775), (725, 383877), (765, 363805), (965, 288405), (975, 285447), (1105, 251865), (1131, 246075), (1275, 218283), (1305, 213265), (1479, 188175), (1737, 160225), (1885, 147645), (1989, 139925), (2175, 127959), (2465, 112905), (2509, 110925), (2895, 96135), (2925, 95149), (3281, 84825), (3315, 83955), (3393, 82025), (3825, 72761), (4437, 62725), (4825, 57681), (5525, 50373), (5597, 49725), (5655, 49215), (6409, 43425), (6525, 42653), (7395, 37635), (7527, 36975), (8685, 32045), (9425, 29529), (9843, 28275), (9945, 27985), (12325, 22581), (12545, 22185), (14475, 19227), (16405, 16965), (16575, 16791)]