128697735

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 232657920

約数和(自身を除く): 103960185

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 101, 255, 263, 285, 303, 323, 505, 789, 969, 1315, 1515, 1615, 1717, 1919, 3945, 4471, 4845, 4997, 5151, 5757, 8585, 9595, 13413, 14991, 22355, 24985, 25755, 26563, 28785, 32623, 67065, 74955, 79689, 84949, 97869, 132815, 163115, 254847, 398445, 424745, 451571, 489345, 504697, 1274235, 1354713, 1514091, 2257855, 2523485, 6773565, 7570455, 8579849, 25739547, 42899245, 128697735]

約数ペア:

[(1, 128697735), (3, 42899245), (5, 25739547), (15, 8579849), (17, 7570455), (19, 6773565), (51, 2523485), (57, 2257855), (85, 1514091), (95, 1354713), (101, 1274235), (255, 504697), (263, 489345), (285, 451571), (303, 424745), (323, 398445), (505, 254847), (789, 163115), (969, 132815), (1315, 97869), (1515, 84949), (1615, 79689), (1717, 74955), (1919, 67065), (3945, 32623), (4471, 28785), (4845, 26563), (4997, 25755), (5151, 24985), (5757, 22355), (8585, 14991), (9595, 13413)]