78485680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10781}}^1$

素因数の和:10814

約数の個数: 80

約数和(自身を含む): 224610624

約数和(自身を除く): 146124944

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 10781, 21562, 43124, 53905, 75467, 86248, 107810, 140153, 150934, 172496, 215620, 280306, 301868, 377335, 431240, 560612, 603736, 700765, 754670, 862480, 981071, 1121224, 1207472, 1401530, 1509340, 1962142, 2242448, 2803060, 3018680, 3924284, 4905355, 5606120, 6037360, 7848568, 9810710, 11212240, 15697136, 19621420, 39242840, 78485680]

約数ペア:

[(1, 78485680), (2, 39242840), (4, 19621420), (5, 15697136), (7, 11212240), (8, 9810710), (10, 7848568), (13, 6037360), (14, 5606120), (16, 4905355), (20, 3924284), (26, 3018680), (28, 2803060), (35, 2242448), (40, 1962142), (52, 1509340), (56, 1401530), (65, 1207472), (70, 1121224), (80, 981071), (91, 862480), (104, 754670), (112, 700765), (130, 603736), (140, 560612), (182, 431240), (208, 377335), (260, 301868), (280, 280306), (364, 215620), (455, 172496), (520, 150934), (560, 140153), (728, 107810), (910, 86248), (1040, 75467), (1456, 53905), (1820, 43124), (3640, 21562), (7280, 10781)]