80787420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{661}}^1$

素因数の和:780

約数の個数: 144

約数和(自身を含む): 283378368

約数和(自身を除く): 202590948

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 97, 105, 126, 140, 180, 194, 210, 252, 291, 315, 388, 420, 485, 582, 630, 661, 679, 873, 970, 1164, 1260, 1322, 1358, 1455, 1746, 1940, 1983, 2037, 2644, 2716, 2910, 3305, 3395, 3492, 3966, 4074, 4365, 4627, 5820, 5949, 6111, 6610, 6790, 7932, 8148, 8730, 9254, 9915, 10185, 11898, 12222, 13220, 13580, 13881, 17460, 18508, 19830, 20370, 23135, 23796, 24444, 27762, 29745, 30555, 39660, 40740, 41643, 46270, 55524, 59490, 61110, 64117, 69405, 83286, 92540, 118980, 122220, 128234, 138810, 166572, 192351, 208215, 256468, 277620, 320585, 384702, 416430, 448819, 577053, 641170, 769404, 832860, 897638, 961755, 1154106, 1282340, 1346457, 1795276, 1923510, 2244095, 2308212, 2692914, 2885265, 3847020, 4039371, 4488190, 5385828, 5770530, 6732285, 8078742, 8976380, 11541060, 13464570, 16157484, 20196855, 26929140, 40393710, 80787420]

約数ペア:

[(1, 80787420), (2, 40393710), (3, 26929140), (4, 20196855), (5, 16157484), (6, 13464570), (7, 11541060), (9, 8976380), (10, 8078742), (12, 6732285), (14, 5770530), (15, 5385828), (18, 4488190), (20, 4039371), (21, 3847020), (28, 2885265), (30, 2692914), (35, 2308212), (36, 2244095), (42, 1923510), (45, 1795276), (60, 1346457), (63, 1282340), (70, 1154106), (84, 961755), (90, 897638), (97, 832860), (105, 769404), (126, 641170), (140, 577053), (180, 448819), (194, 416430), (210, 384702), (252, 320585), (291, 277620), (315, 256468), (388, 208215), (420, 192351), (485, 166572), (582, 138810), (630, 128234), (661, 122220), (679, 118980), (873, 92540), (970, 83286), (1164, 69405), (1260, 64117), (1322, 61110), (1358, 59490), (1455, 55524), (1746, 46270), (1940, 41643), (1983, 40740), (2037, 39660), (2644, 30555), (2716, 29745), (2910, 27762), (3305, 24444), (3395, 23796), (3492, 23135), (3966, 20370), (4074, 19830), (4365, 18508), (4627, 17460), (5820, 13881), (5949, 13580), (6111, 13220), (6610, 12222), (6790, 11898), (7932, 10185), (8148, 9915), (8730, 9254)]