1821987180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{25117}}^1$

素因数の和:25176

約数の個数: 144

約数和(自身を含む): 6144063744

約数和(自身を除く): 4322076564

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, 279, 310, 372, 390, 403, 465, 468, 558, 585, 620, 780, 806, 930, 1116, 1170, 1209, 1395, 1612, 1860, 2015, 2340, 2418, 2790, 3627, 4030, 4836, 5580, 6045, 7254, 8060, 12090, 14508, 18135, 24180, 25117, 36270, 50234, 72540, 75351, 100468, 125585, 150702, 226053, 251170, 301404, 326521, 376755, 452106, 502340, 653042, 753510, 778627, 904212, 979563, 1130265, 1306084, 1507020, 1557254, 1632605, 1959126, 2260530, 2335881, 2938689, 3114508, 3265210, 3893135, 3918252, 4521060, 4671762, 4897815, 5877378, 6530420, 7007643, 7786270, 9343524, 9795630, 10122151, 11679405, 11754756, 14015286, 14693445, 15572540, 19591260, 20244302, 23358810, 28030572, 29386890, 30366453, 35038215, 40488604, 46717620, 50610755, 58773780, 60732906, 70076430, 91099359, 101221510, 121465812, 140152860, 151832265, 182198718, 202443020, 303664530, 364397436, 455496795, 607329060, 910993590, 1821987180]

約数ペア:

[(1, 1821987180), (2, 910993590), (3, 607329060), (4, 455496795), (5, 364397436), (6, 303664530), (9, 202443020), (10, 182198718), (12, 151832265), (13, 140152860), (15, 121465812), (18, 101221510), (20, 91099359), (26, 70076430), (30, 60732906), (31, 58773780), (36, 50610755), (39, 46717620), (45, 40488604), (52, 35038215), (60, 30366453), (62, 29386890), (65, 28030572), (78, 23358810), (90, 20244302), (93, 19591260), (117, 15572540), (124, 14693445), (130, 14015286), (155, 11754756), (156, 11679405), (180, 10122151), (186, 9795630), (195, 9343524), (234, 7786270), (260, 7007643), (279, 6530420), (310, 5877378), (372, 4897815), (390, 4671762), (403, 4521060), (465, 3918252), (468, 3893135), (558, 3265210), (585, 3114508), (620, 2938689), (780, 2335881), (806, 2260530), (930, 1959126), (1116, 1632605), (1170, 1557254), (1209, 1507020), (1395, 1306084), (1612, 1130265), (1860, 979563), (2015, 904212), (2340, 778627), (2418, 753510), (2790, 653042), (3627, 502340), (4030, 452106), (4836, 376755), (5580, 326521), (6045, 301404), (7254, 251170), (8060, 226053), (12090, 150702), (14508, 125585), (18135, 100468), (24180, 75351), (25117, 72540), (36270, 50234)]