77977620

素因数分解:

$2^2\times 3^3\times 5^1\times 7^3\times {\mathrm{421}}^1$

素因数の和:460

約数の個数: 192

約数和(自身を含む): 283584000

約数和(自身を除く): 205606380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 343, 378, 420, 421, 441, 490, 540, 588, 630, 686, 735, 756, 842, 882, 945, 980, 1029, 1260, 1263, 1323, 1372, 1470, 1684, 1715, 1764, 1890, 2058, 2105, 2205, 2526, 2646, 2940, 2947, 3087, 3430, 3780, 3789, 4116, 4210, 4410, 5052, 5145, 5292, 5894, 6174, 6315, 6615, 6860, 7578, 8420, 8820, 8841, 9261, 10290, 11367, 11788, 12348, 12630, 13230, 14735, 15156, 15435, 17682, 18522, 18945, 20580, 20629, 22734, 25260, 26460, 26523, 29470, 30870, 35364, 37044, 37890, 41258, 44205, 45468, 46305, 53046, 56835, 58940, 61740, 61887, 75780, 79569, 82516, 88410, 92610, 103145, 106092, 113670, 123774, 132615, 144403, 159138, 176820, 185220, 185661, 206290, 227340, 247548, 265230, 288806, 309435, 318276, 371322, 397845, 412580, 433209, 530460, 556983, 577612, 618870, 722015, 742644, 795690, 866418, 928305, 1113966, 1237740, 1299627, 1444030, 1591380, 1732836, 1856610, 2166045, 2227932, 2599254, 2784915, 2888060, 3713220, 3898881, 4332090, 5198508, 5569830, 6498135, 7797762, 8664180, 11139660, 12996270, 15595524, 19494405, 25992540, 38988810, 77977620]

約数ペア:

[(1, 77977620), (2, 38988810), (3, 25992540), (4, 19494405), (5, 15595524), (6, 12996270), (7, 11139660), (9, 8664180), (10, 7797762), (12, 6498135), (14, 5569830), (15, 5198508), (18, 4332090), (20, 3898881), (21, 3713220), (27, 2888060), (28, 2784915), (30, 2599254), (35, 2227932), (36, 2166045), (42, 1856610), (45, 1732836), (49, 1591380), (54, 1444030), (60, 1299627), (63, 1237740), (70, 1113966), (84, 928305), (90, 866418), (98, 795690), (105, 742644), (108, 722015), (126, 618870), (135, 577612), (140, 556983), (147, 530460), (180, 433209), (189, 412580), (196, 397845), (210, 371322), (245, 318276), (252, 309435), (270, 288806), (294, 265230), (315, 247548), (343, 227340), (378, 206290), (420, 185661), (421, 185220), (441, 176820), (490, 159138), (540, 144403), (588, 132615), (630, 123774), (686, 113670), (735, 106092), (756, 103145), (842, 92610), (882, 88410), (945, 82516), (980, 79569), (1029, 75780), (1260, 61887), (1263, 61740), (1323, 58940), (1372, 56835), (1470, 53046), (1684, 46305), (1715, 45468), (1764, 44205), (1890, 41258), (2058, 37890), (2105, 37044), (2205, 35364), (2526, 30870), (2646, 29470), (2940, 26523), (2947, 26460), (3087, 25260), (3430, 22734), (3780, 20629), (3789, 20580), (4116, 18945), (4210, 18522), (4410, 17682), (5052, 15435), (5145, 15156), (5292, 14735), (5894, 13230), (6174, 12630), (6315, 12348), (6615, 11788), (6860, 11367), (7578, 10290), (8420, 9261), (8820, 8841)]