20390284

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1231}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 36945216

約数和(自身を除く): 16554932

約数列:

[1, 2, 4, 41, 82, 101, 164, 202, 404, 1231, 2462, 4141, 4924, 8282, 16564, 50471, 100942, 124331, 201884, 248662, 497324, 5097571, 10195142, 20390284]

約数ペア:

[(1, 20390284), (2, 10195142), (4, 5097571), (41, 497324), (82, 248662), (101, 201884), (164, 124331), (202, 100942), (404, 50471), (1231, 16564), (2462, 8282), (4141, 4924)]