2019979620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20441}}^1$

素因数の和:20523

約数の個数: 120

約数和(自身を含む): 6440947128

約数和(自身を除く): 4420967508

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 81, 90, 108, 122, 135, 162, 180, 183, 244, 270, 305, 324, 366, 405, 540, 549, 610, 732, 810, 915, 1098, 1220, 1620, 1647, 1830, 2196, 2745, 3294, 3660, 4941, 5490, 6588, 8235, 9882, 10980, 16470, 19764, 20441, 24705, 32940, 40882, 49410, 61323, 81764, 98820, 102205, 122646, 183969, 204410, 245292, 306615, 367938, 408820, 551907, 613230, 735876, 919845, 1103814, 1226460, 1246901, 1655721, 1839690, 2207628, 2493802, 2759535, 3311442, 3679380, 3740703, 4987604, 5519070, 6234505, 6622884, 7481406, 8278605, 11038140, 11222109, 12469010, 14962812, 16557210, 18703515, 22444218, 24938020, 33114420, 33666327, 37407030, 44888436, 56110545, 67332654, 74814060, 100998981, 112221090, 134665308, 168331635, 201997962, 224442180, 336663270, 403995924, 504994905, 673326540, 1009989810, 2019979620]

約数ペア:

[(1, 2019979620), (2, 1009989810), (3, 673326540), (4, 504994905), (5, 403995924), (6, 336663270), (9, 224442180), (10, 201997962), (12, 168331635), (15, 134665308), (18, 112221090), (20, 100998981), (27, 74814060), (30, 67332654), (36, 56110545), (45, 44888436), (54, 37407030), (60, 33666327), (61, 33114420), (81, 24938020), (90, 22444218), (108, 18703515), (122, 16557210), (135, 14962812), (162, 12469010), (180, 11222109), (183, 11038140), (244, 8278605), (270, 7481406), (305, 6622884), (324, 6234505), (366, 5519070), (405, 4987604), (540, 3740703), (549, 3679380), (610, 3311442), (732, 2759535), (810, 2493802), (915, 2207628), (1098, 1839690), (1220, 1655721), (1620, 1246901), (1647, 1226460), (1830, 1103814), (2196, 919845), (2745, 735876), (3294, 613230), (3660, 551907), (4941, 408820), (5490, 367938), (6588, 306615), (8235, 245292), (9882, 204410), (10980, 183969), (16470, 122646), (19764, 102205), (20441, 98820), (24705, 81764), (32940, 61323), (40882, 49410)]