261569295

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{233}}^1$

素因数の和:377

約数の個数: 96

約数和(自身を含む): 521277120

約数和(自身を除く): 259707825

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 101, 117, 171, 195, 233, 247, 285, 303, 505, 585, 699, 741, 855, 909, 1165, 1235, 1313, 1515, 1919, 2097, 2223, 3029, 3495, 3705, 3939, 4427, 4545, 5757, 6565, 9087, 9595, 10485, 11115, 11817, 13281, 15145, 17271, 19695, 22135, 23533, 24947, 27261, 28785, 39843, 45435, 57551, 59085, 66405, 70599, 74841, 86355, 117665, 124735, 136305, 172653, 199215, 211797, 224523, 287755, 305929, 352995, 374205, 447127, 517959, 863265, 917787, 1058985, 1122615, 1341381, 1529645, 2235635, 2589795, 2753361, 4024143, 4588935, 5812651, 6706905, 13766805, 17437953, 20120715, 29063255, 52313859, 87189765, 261569295]

約数ペア:

[(1, 261569295), (3, 87189765), (5, 52313859), (9, 29063255), (13, 20120715), (15, 17437953), (19, 13766805), (39, 6706905), (45, 5812651), (57, 4588935), (65, 4024143), (95, 2753361), (101, 2589795), (117, 2235635), (171, 1529645), (195, 1341381), (233, 1122615), (247, 1058985), (285, 917787), (303, 863265), (505, 517959), (585, 447127), (699, 374205), (741, 352995), (855, 305929), (909, 287755), (1165, 224523), (1235, 211797), (1313, 199215), (1515, 172653), (1919, 136305), (2097, 124735), (2223, 117665), (3029, 86355), (3495, 74841), (3705, 70599), (3939, 66405), (4427, 59085), (4545, 57551), (5757, 45435), (6565, 39843), (9087, 28785), (9595, 27261), (10485, 24947), (11115, 23533), (11817, 22135), (13281, 19695), (15145, 17271)]