20165778255

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{409499}}^1$

素因数の和:409588

約数の個数: 48

約数和(自身を含む): 38093328000

約数和(自身を除く): 17927549745

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 67, 105, 147, 201, 245, 335, 469, 735, 1005, 1407, 2345, 3283, 7035, 9849, 16415, 49245, 409499, 1228497, 2047495, 2866493, 6142485, 8599479, 14332465, 20065451, 27436433, 42997395, 60196353, 82309299, 100327255, 137182165, 192055031, 300981765, 411546495, 576165093, 960275155, 1344385217, 2880825465, 4033155651, 6721926085, 20165778255]

約数ペア:

[(1, 20165778255), (3, 6721926085), (5, 4033155651), (7, 2880825465), (15, 1344385217), (21, 960275155), (35, 576165093), (49, 411546495), (67, 300981765), (105, 192055031), (147, 137182165), (201, 100327255), (245, 82309299), (335, 60196353), (469, 42997395), (735, 27436433), (1005, 20065451), (1407, 14332465), (2345, 8599479), (3283, 6142485), (7035, 2866493), (9849, 2047495), (16415, 1228497), (49245, 409499)]