80778180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2161}}^1$

素因数の和:2269

約数の個数: 96

約数和(自身を含む): 261515520

約数和(自身を除く): 180737340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 89, 105, 140, 178, 210, 267, 356, 420, 445, 534, 623, 890, 1068, 1246, 1335, 1780, 1869, 2161, 2492, 2670, 3115, 3738, 4322, 5340, 6230, 6483, 7476, 8644, 9345, 10805, 12460, 12966, 15127, 18690, 21610, 25932, 30254, 32415, 37380, 43220, 45381, 60508, 64830, 75635, 90762, 129660, 151270, 181524, 192329, 226905, 302540, 384658, 453810, 576987, 769316, 907620, 961645, 1153974, 1346303, 1923290, 2307948, 2692606, 2884935, 3846580, 4038909, 5385212, 5769870, 6731515, 8077818, 11539740, 13463030, 16155636, 20194545, 26926060, 40389090, 80778180]

約数ペア:

[(1, 80778180), (2, 40389090), (3, 26926060), (4, 20194545), (5, 16155636), (6, 13463030), (7, 11539740), (10, 8077818), (12, 6731515), (14, 5769870), (15, 5385212), (20, 4038909), (21, 3846580), (28, 2884935), (30, 2692606), (35, 2307948), (42, 1923290), (60, 1346303), (70, 1153974), (84, 961645), (89, 907620), (105, 769316), (140, 576987), (178, 453810), (210, 384658), (267, 302540), (356, 226905), (420, 192329), (445, 181524), (534, 151270), (623, 129660), (890, 90762), (1068, 75635), (1246, 64830), (1335, 60508), (1780, 45381), (1869, 43220), (2161, 37380), (2492, 32415), (2670, 30254), (3115, 25932), (3738, 21610), (4322, 18690), (5340, 15127), (6230, 12966), (6483, 12460), (7476, 10805), (8644, 9345)]