161556360

素因数分解:

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

素因数の和:2271

約数の個数: 128

約数和(自身を含む): 560390400

約数和(自身を除く): 398834040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 89, 105, 120, 140, 168, 178, 210, 267, 280, 356, 420, 445, 534, 623, 712, 840, 890, 1068, 1246, 1335, 1780, 1869, 2136, 2161, 2492, 2670, 3115, 3560, 3738, 4322, 4984, 5340, 6230, 6483, 7476, 8644, 9345, 10680, 10805, 12460, 12966, 14952, 15127, 17288, 18690, 21610, 24920, 25932, 30254, 32415, 37380, 43220, 45381, 51864, 60508, 64830, 74760, 75635, 86440, 90762, 121016, 129660, 151270, 181524, 192329, 226905, 259320, 302540, 363048, 384658, 453810, 576987, 605080, 769316, 907620, 961645, 1153974, 1346303, 1538632, 1815240, 1923290, 2307948, 2692606, 2884935, 3846580, 4038909, 4615896, 5385212, 5769870, 6731515, 7693160, 8077818, 10770424, 11539740, 13463030, 16155636, 20194545, 23079480, 26926060, 32311272, 40389090, 53852120, 80778180, 161556360]

約数ペア:

[(1, 161556360), (2, 80778180), (3, 53852120), (4, 40389090), (5, 32311272), (6, 26926060), (7, 23079480), (8, 20194545), (10, 16155636), (12, 13463030), (14, 11539740), (15, 10770424), (20, 8077818), (21, 7693160), (24, 6731515), (28, 5769870), (30, 5385212), (35, 4615896), (40, 4038909), (42, 3846580), (56, 2884935), (60, 2692606), (70, 2307948), (84, 1923290), (89, 1815240), (105, 1538632), (120, 1346303), (140, 1153974), (168, 961645), (178, 907620), (210, 769316), (267, 605080), (280, 576987), (356, 453810), (420, 384658), (445, 363048), (534, 302540), (623, 259320), (712, 226905), (840, 192329), (890, 181524), (1068, 151270), (1246, 129660), (1335, 121016), (1780, 90762), (1869, 86440), (2136, 75635), (2161, 74760), (2492, 64830), (2670, 60508), (3115, 51864), (3560, 45381), (3738, 43220), (4322, 37380), (4984, 32415), (5340, 30254), (6230, 25932), (6483, 24920), (7476, 21610), (8644, 18690), (9345, 17288), (10680, 15127), (10805, 14952), (12460, 12966)]