81729284

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1987}}^1$

素因数の和:2124

約数の個数: 48

約数和(自身を含む): 177679488

約数和(自身を除く): 95950204

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 113, 182, 226, 364, 452, 791, 1469, 1582, 1987, 2938, 3164, 3974, 5876, 7948, 10283, 13909, 20566, 25831, 27818, 41132, 51662, 55636, 103324, 180817, 224531, 361634, 449062, 723268, 898124, 1571717, 2918903, 3143434, 5837806, 6286868, 11675612, 20432321, 40864642, 81729284]

約数ペア:

[(1, 81729284), (2, 40864642), (4, 20432321), (7, 11675612), (13, 6286868), (14, 5837806), (26, 3143434), (28, 2918903), (52, 1571717), (91, 898124), (113, 723268), (182, 449062), (226, 361634), (364, 224531), (452, 180817), (791, 103324), (1469, 55636), (1582, 51662), (1987, 41132), (2938, 27818), (3164, 25831), (3974, 20566), (5876, 13909), (7948, 10283)]