20505168

素因数分解:

$2^4\times 3^2\times {\mathrm{131}}^1\times {\mathrm{1087}}^1$

素因数の和:1232

約数の個数: 60

約数和(自身を含む): 57877248

約数和(自身を除く): 37372080

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 131, 144, 262, 393, 524, 786, 1048, 1087, 1179, 1572, 2096, 2174, 2358, 3144, 3261, 4348, 4716, 6288, 6522, 8696, 9432, 9783, 13044, 17392, 18864, 19566, 26088, 39132, 52176, 78264, 142397, 156528, 284794, 427191, 569588, 854382, 1139176, 1281573, 1708764, 2278352, 2563146, 3417528, 5126292, 6835056, 10252584, 20505168]

約数ペア:

[(1, 20505168), (2, 10252584), (3, 6835056), (4, 5126292), (6, 3417528), (8, 2563146), (9, 2278352), (12, 1708764), (16, 1281573), (18, 1139176), (24, 854382), (36, 569588), (48, 427191), (72, 284794), (131, 156528), (144, 142397), (262, 78264), (393, 52176), (524, 39132), (786, 26088), (1048, 19566), (1087, 18864), (1179, 17392), (1572, 13044), (2096, 9783), (2174, 9432), (2358, 8696), (3144, 6522), (3261, 6288), (4348, 4716)]