1277820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 4018560

約数和(自身を除く): 2740740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 229, 279, 310, 372, 458, 465, 558, 620, 687, 916, 930, 1116, 1145, 1374, 1395, 1860, 2061, 2290, 2748, 2790, 3435, 4122, 4580, 5580, 6870, 7099, 8244, 10305, 13740, 14198, 20610, 21297, 28396, 35495, 41220, 42594, 63891, 70990, 85188, 106485, 127782, 141980, 212970, 255564, 319455, 425940, 638910, 1277820]

約数ペア:

[(1, 1277820), (2, 638910), (3, 425940), (4, 319455), (5, 255564), (6, 212970), (9, 141980), (10, 127782), (12, 106485), (15, 85188), (18, 70990), (20, 63891), (30, 42594), (31, 41220), (36, 35495), (45, 28396), (60, 21297), (62, 20610), (90, 14198), (93, 13740), (124, 10305), (155, 8244), (180, 7099), (186, 6870), (229, 5580), (279, 4580), (310, 4122), (372, 3435), (458, 2790), (465, 2748), (558, 2290), (620, 2061), (687, 1860), (916, 1395), (930, 1374), (1116, 1145)]