20167888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2063}}^1$

素因数の和:2131

約数の個数: 40

約数和(自身を含む): 42997248

約数和(自身を除く): 22829360

約数列:

[1, 2, 4, 8, 13, 16, 26, 47, 52, 94, 104, 188, 208, 376, 611, 752, 1222, 2063, 2444, 4126, 4888, 8252, 9776, 16504, 26819, 33008, 53638, 96961, 107276, 193922, 214552, 387844, 429104, 775688, 1260493, 1551376, 2520986, 5041972, 10083944, 20167888]

約数ペア:

[(1, 20167888), (2, 10083944), (4, 5041972), (8, 2520986), (13, 1551376), (16, 1260493), (26, 775688), (47, 429104), (52, 387844), (94, 214552), (104, 193922), (188, 107276), (208, 96961), (376, 53638), (611, 33008), (752, 26819), (1222, 16504), (2063, 9776), (2444, 8252), (4126, 4888)]