20805304

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10529}}^1$

素因数の和:10567

約数の個数: 32

約数和(自身を含む): 44226000

約数和(自身を除く): 23420696

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10529, 21058, 42116, 84232, 136877, 200051, 273754, 400102, 547508, 800204, 1095016, 1600408, 2600663, 5201326, 10402652, 20805304]

約数ペア:

[(1, 20805304), (2, 10402652), (4, 5201326), (8, 2600663), (13, 1600408), (19, 1095016), (26, 800204), (38, 547508), (52, 400102), (76, 273754), (104, 200051), (152, 136877), (247, 84232), (494, 42116), (988, 21058), (1976, 10529)]