19078020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:322

約数の個数: 144

約数和(自身を含む): 64576512

約数和(自身を除く): 45498492

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 31, 36, 39, 45, 52, 60, 62, 65, 78, 90, 93, 117, 124, 130, 155, 156, 180, 186, 195, 234, 260, 263, 279, 310, 372, 390, 403, 465, 468, 526, 558, 585, 620, 780, 789, 806, 930, 1052, 1116, 1170, 1209, 1315, 1395, 1578, 1612, 1860, 2015, 2340, 2367, 2418, 2630, 2790, 3156, 3419, 3627, 3945, 4030, 4734, 4836, 5260, 5580, 6045, 6838, 7254, 7890, 8060, 8153, 9468, 10257, 11835, 12090, 13676, 14508, 15780, 16306, 17095, 18135, 20514, 23670, 24180, 24459, 30771, 32612, 34190, 36270, 40765, 41028, 47340, 48918, 51285, 61542, 68380, 72540, 73377, 81530, 97836, 102570, 105989, 122295, 123084, 146754, 153855, 163060, 205140, 211978, 244590, 293508, 307710, 317967, 366885, 423956, 489180, 529945, 615420, 635934, 733770, 953901, 1059890, 1271868, 1467540, 1589835, 1907802, 2119780, 3179670, 3815604, 4769505, 6359340, 9539010, 19078020]

約数ペア:

[(1, 19078020), (2, 9539010), (3, 6359340), (4, 4769505), (5, 3815604), (6, 3179670), (9, 2119780), (10, 1907802), (12, 1589835), (13, 1467540), (15, 1271868), (18, 1059890), (20, 953901), (26, 733770), (30, 635934), (31, 615420), (36, 529945), (39, 489180), (45, 423956), (52, 366885), (60, 317967), (62, 307710), (65, 293508), (78, 244590), (90, 211978), (93, 205140), (117, 163060), (124, 153855), (130, 146754), (155, 123084), (156, 122295), (180, 105989), (186, 102570), (195, 97836), (234, 81530), (260, 73377), (263, 72540), (279, 68380), (310, 61542), (372, 51285), (390, 48918), (403, 47340), (465, 41028), (468, 40765), (526, 36270), (558, 34190), (585, 32612), (620, 30771), (780, 24459), (789, 24180), (806, 23670), (930, 20514), (1052, 18135), (1116, 17095), (1170, 16306), (1209, 15780), (1315, 14508), (1395, 13676), (1578, 12090), (1612, 11835), (1860, 10257), (2015, 9468), (2340, 8153), (2367, 8060), (2418, 7890), (2630, 7254), (2790, 6838), (3156, 6045), (3419, 5580), (3627, 5260), (3945, 4836), (4030, 4734)]