20787064

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{839}}^1$

素因数の和:1027

約数の個数: 32

約数和(自身を含む): 41328000

約数和(自身を除く): 20540936

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 163, 326, 652, 839, 1304, 1678, 3097, 3356, 6194, 6712, 12388, 15941, 24776, 31882, 63764, 127528, 136757, 273514, 547028, 1094056, 2598383, 5196766, 10393532, 20787064]

約数ペア:

[(1, 20787064), (2, 10393532), (4, 5196766), (8, 2598383), (19, 1094056), (38, 547028), (76, 273514), (152, 136757), (163, 127528), (326, 63764), (652, 31882), (839, 24776), (1304, 15941), (1678, 12388), (3097, 6712), (3356, 6194)]