28878732

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{229}}^1$

素因数の和:383

約数の個数: 72

約数和(自身を含む): 76352640

約数和(自身を除く): 47473908

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 113, 124, 186, 226, 229, 279, 339, 372, 452, 458, 558, 678, 687, 916, 1017, 1116, 1356, 1374, 2034, 2061, 2748, 3503, 4068, 4122, 7006, 7099, 8244, 10509, 14012, 14198, 21018, 21297, 25877, 28396, 31527, 42036, 42594, 51754, 63054, 63891, 77631, 85188, 103508, 126108, 127782, 155262, 232893, 255564, 310524, 465786, 802187, 931572, 1604374, 2406561, 3208748, 4813122, 7219683, 9626244, 14439366, 28878732]

約数ペア:

[(1, 28878732), (2, 14439366), (3, 9626244), (4, 7219683), (6, 4813122), (9, 3208748), (12, 2406561), (18, 1604374), (31, 931572), (36, 802187), (62, 465786), (93, 310524), (113, 255564), (124, 232893), (186, 155262), (226, 127782), (229, 126108), (279, 103508), (339, 85188), (372, 77631), (452, 63891), (458, 63054), (558, 51754), (678, 42594), (687, 42036), (916, 31527), (1017, 28396), (1116, 25877), (1356, 21297), (1374, 21018), (2034, 14198), (2061, 14012), (2748, 10509), (3503, 8244), (4068, 7099), (4122, 7006)]