2157318120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{26953}}^1$

素因数の和:27019

約数の個数: 128

約数和(自身を含む): 6986476800

約数和(自身を除く): 4829158680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 29, 30, 40, 46, 58, 60, 69, 87, 92, 115, 116, 120, 138, 145, 174, 184, 230, 232, 276, 290, 345, 348, 435, 460, 552, 580, 667, 690, 696, 870, 920, 1160, 1334, 1380, 1740, 2001, 2668, 2760, 3335, 3480, 4002, 5336, 6670, 8004, 10005, 13340, 16008, 20010, 26680, 26953, 40020, 53906, 80040, 80859, 107812, 134765, 161718, 215624, 269530, 323436, 404295, 539060, 619919, 646872, 781637, 808590, 1078120, 1239838, 1563274, 1617180, 1859757, 2344911, 2479676, 3099595, 3126548, 3234360, 3719514, 3908185, 4689822, 4959352, 6199190, 6253096, 7439028, 7816370, 9298785, 9379644, 11724555, 12398380, 14878056, 15632740, 17977651, 18597570, 18759288, 23449110, 24796760, 31265480, 35955302, 37195140, 46898220, 53932953, 71910604, 74390280, 89888255, 93796440, 107865906, 143821208, 179776510, 215731812, 269664765, 359553020, 431463624, 539329530, 719106040, 1078659060, 2157318120]

約数ペア:

[(1, 2157318120), (2, 1078659060), (3, 719106040), (4, 539329530), (5, 431463624), (6, 359553020), (8, 269664765), (10, 215731812), (12, 179776510), (15, 143821208), (20, 107865906), (23, 93796440), (24, 89888255), (29, 74390280), (30, 71910604), (40, 53932953), (46, 46898220), (58, 37195140), (60, 35955302), (69, 31265480), (87, 24796760), (92, 23449110), (115, 18759288), (116, 18597570), (120, 17977651), (138, 15632740), (145, 14878056), (174, 12398380), (184, 11724555), (230, 9379644), (232, 9298785), (276, 7816370), (290, 7439028), (345, 6253096), (348, 6199190), (435, 4959352), (460, 4689822), (552, 3908185), (580, 3719514), (667, 3234360), (690, 3126548), (696, 3099595), (870, 2479676), (920, 2344911), (1160, 1859757), (1334, 1617180), (1380, 1563274), (1740, 1239838), (2001, 1078120), (2668, 808590), (2760, 781637), (3335, 646872), (3480, 619919), (4002, 539060), (5336, 404295), (6670, 323436), (8004, 269530), (10005, 215624), (13340, 161718), (16008, 134765), (20010, 107812), (26680, 80859), (26953, 80040), (40020, 53906)]