255981825

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1753}}^1$

素因数の和:1839

約数の個数: 72

約数和(自身を含む): 508940640

約数和(自身を除く): 252958815

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 59, 75, 99, 165, 177, 225, 275, 295, 495, 531, 649, 825, 885, 1475, 1753, 1947, 2475, 2655, 3245, 4425, 5259, 5841, 8765, 9735, 13275, 15777, 16225, 19283, 26295, 29205, 43825, 48675, 57849, 78885, 96415, 103427, 131475, 146025, 173547, 289245, 310281, 394425, 482075, 517135, 867735, 930843, 1137697, 1446225, 1551405, 2585675, 3413091, 4338675, 4654215, 5688485, 7757025, 10239273, 17065455, 23271075, 28442425, 51196365, 85327275, 255981825]

約数ペア:

[(1, 255981825), (3, 85327275), (5, 51196365), (9, 28442425), (11, 23271075), (15, 17065455), (25, 10239273), (33, 7757025), (45, 5688485), (55, 4654215), (59, 4338675), (75, 3413091), (99, 2585675), (165, 1551405), (177, 1446225), (225, 1137697), (275, 930843), (295, 867735), (495, 517135), (531, 482075), (649, 394425), (825, 310281), (885, 289245), (1475, 173547), (1753, 146025), (1947, 131475), (2475, 103427), (2655, 96415), (3245, 78885), (4425, 57849), (5259, 48675), (5841, 43825), (8765, 29205), (9735, 26295), (13275, 19283), (15777, 16225)]