27990365

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 38707200

約数和(自身を除く): 10716835

約数列:

[1, 5, 13, 29, 31, 65, 145, 155, 377, 403, 479, 899, 1885, 2015, 2395, 4495, 6227, 11687, 13891, 14849, 31135, 58435, 69455, 74245, 180583, 193037, 430621, 902915, 965185, 2153105, 5598073, 27990365]

約数ペア:

[(1, 27990365), (5, 5598073), (13, 2153105), (29, 965185), (31, 902915), (65, 430621), (145, 193037), (155, 180583), (377, 74245), (403, 69455), (479, 58435), (899, 31135), (1885, 14849), (2015, 13891), (2395, 11687), (4495, 6227)]