19806210

素因数分解:

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

素因数の和:304

約数の個数: 72

約数和(自身を含む): 53443260

約数和(自身を除く): 33637050

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 229, 279, 310, 458, 465, 558, 687, 930, 961, 1145, 1374, 1395, 1922, 2061, 2290, 2790, 2883, 3435, 4122, 4805, 5766, 6870, 7099, 8649, 9610, 10305, 14198, 14415, 17298, 20610, 21297, 28830, 35495, 42594, 43245, 63891, 70990, 86490, 106485, 127782, 212970, 220069, 319455, 440138, 638910, 660207, 1100345, 1320414, 1980621, 2200690, 3301035, 3961242, 6602070, 9903105, 19806210]

約数ペア:

[(1, 19806210), (2, 9903105), (3, 6602070), (5, 3961242), (6, 3301035), (9, 2200690), (10, 1980621), (15, 1320414), (18, 1100345), (30, 660207), (31, 638910), (45, 440138), (62, 319455), (90, 220069), (93, 212970), (155, 127782), (186, 106485), (229, 86490), (279, 70990), (310, 63891), (458, 43245), (465, 42594), (558, 35495), (687, 28830), (930, 21297), (961, 20610), (1145, 17298), (1374, 14415), (1395, 14198), (1922, 10305), (2061, 9610), (2290, 8649), (2790, 7099), (2883, 6870), (3435, 5766), (4122, 4805)]