20398020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{617}}^1$

素因数の和:677

約数の個数: 96

約数和(自身を含む): 62294400

約数和(自身を除く): 41896380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 29, 30, 38, 57, 58, 60, 76, 87, 95, 114, 116, 145, 174, 190, 228, 285, 290, 348, 380, 435, 551, 570, 580, 617, 870, 1102, 1140, 1234, 1653, 1740, 1851, 2204, 2468, 2755, 3085, 3306, 3702, 5510, 6170, 6612, 7404, 8265, 9255, 11020, 11723, 12340, 16530, 17893, 18510, 23446, 33060, 35169, 35786, 37020, 46892, 53679, 58615, 70338, 71572, 89465, 107358, 117230, 140676, 175845, 178930, 214716, 234460, 268395, 339967, 351690, 357860, 536790, 679934, 703380, 1019901, 1073580, 1359868, 1699835, 2039802, 3399670, 4079604, 5099505, 6799340, 10199010, 20398020]

約数ペア:

[(1, 20398020), (2, 10199010), (3, 6799340), (4, 5099505), (5, 4079604), (6, 3399670), (10, 2039802), (12, 1699835), (15, 1359868), (19, 1073580), (20, 1019901), (29, 703380), (30, 679934), (38, 536790), (57, 357860), (58, 351690), (60, 339967), (76, 268395), (87, 234460), (95, 214716), (114, 178930), (116, 175845), (145, 140676), (174, 117230), (190, 107358), (228, 89465), (285, 71572), (290, 70338), (348, 58615), (380, 53679), (435, 46892), (551, 37020), (570, 35786), (580, 35169), (617, 33060), (870, 23446), (1102, 18510), (1140, 17893), (1234, 16530), (1653, 12340), (1740, 11723), (1851, 11020), (2204, 9255), (2468, 8265), (2755, 7404), (3085, 6612), (3306, 6170), (3702, 5510)]