81670284

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{859}}^1$

素因数の和:1027

約数の個数: 72

約数和(自身を含む): 219128000

約数和(自身を除く): 137457716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 139, 171, 228, 278, 342, 417, 556, 684, 834, 859, 1251, 1668, 1718, 2502, 2577, 2641, 3436, 5004, 5154, 5282, 7731, 7923, 10308, 10564, 15462, 15846, 16321, 23769, 30924, 31692, 32642, 47538, 48963, 65284, 95076, 97926, 119401, 146889, 195852, 238802, 293778, 358203, 477604, 587556, 716406, 1074609, 1432812, 2149218, 2268619, 4298436, 4537238, 6805857, 9074476, 13611714, 20417571, 27223428, 40835142, 81670284]

約数ペア:

[(1, 81670284), (2, 40835142), (3, 27223428), (4, 20417571), (6, 13611714), (9, 9074476), (12, 6805857), (18, 4537238), (19, 4298436), (36, 2268619), (38, 2149218), (57, 1432812), (76, 1074609), (114, 716406), (139, 587556), (171, 477604), (228, 358203), (278, 293778), (342, 238802), (417, 195852), (556, 146889), (684, 119401), (834, 97926), (859, 95076), (1251, 65284), (1668, 48963), (1718, 47538), (2502, 32642), (2577, 31692), (2641, 30924), (3436, 23769), (5004, 16321), (5154, 15846), (5282, 15462), (7731, 10564), (7923, 10308)]