18868960

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:248

約数の個数: 96

約数和(自身を含む): 49641984

約数和(自身を除く): 30773024

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 71, 80, 88, 110, 142, 151, 160, 176, 220, 284, 302, 352, 355, 440, 568, 604, 710, 755, 781, 880, 1136, 1208, 1420, 1510, 1562, 1661, 1760, 2272, 2416, 2840, 3020, 3124, 3322, 3905, 4832, 5680, 6040, 6248, 6644, 7810, 8305, 10721, 11360, 12080, 12496, 13288, 15620, 16610, 21442, 24160, 24992, 26576, 31240, 33220, 42884, 53152, 53605, 62480, 66440, 85768, 107210, 117931, 124960, 132880, 171536, 214420, 235862, 265760, 343072, 428840, 471724, 589655, 857680, 943448, 1179310, 1715360, 1886896, 2358620, 3773792, 4717240, 9434480, 18868960]

約数ペア:

[(1, 18868960), (2, 9434480), (4, 4717240), (5, 3773792), (8, 2358620), (10, 1886896), (11, 1715360), (16, 1179310), (20, 943448), (22, 857680), (32, 589655), (40, 471724), (44, 428840), (55, 343072), (71, 265760), (80, 235862), (88, 214420), (110, 171536), (142, 132880), (151, 124960), (160, 117931), (176, 107210), (220, 85768), (284, 66440), (302, 62480), (352, 53605), (355, 53152), (440, 42884), (568, 33220), (604, 31240), (710, 26576), (755, 24992), (781, 24160), (880, 21442), (1136, 16610), (1208, 15620), (1420, 13288), (1510, 12496), (1562, 12080), (1661, 11360), (1760, 10721), (2272, 8305), (2416, 7810), (2840, 6644), (3020, 6248), (3124, 6040), (3322, 5680), (3905, 4832)]