20797758064

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{647}}^1\times {\mathrm{7639}}^1$

素因数の和:8557

約数の個数: 40

約数和(自身を含む): 40516692480

約数和(自身を除く): 19718934416

約数列:

[1, 2, 4, 8, 16, 263, 526, 647, 1052, 1294, 2104, 2588, 4208, 5176, 7639, 10352, 15278, 30556, 61112, 122224, 170161, 340322, 680644, 1361288, 2009057, 2722576, 4018114, 4942433, 8036228, 9884866, 16072456, 19769732, 32144912, 39539464, 79078928, 1299859879, 2599719758, 5199439516, 10398879032, 20797758064]

約数ペア:

[(1, 20797758064), (2, 10398879032), (4, 5199439516), (8, 2599719758), (16, 1299859879), (263, 79078928), (526, 39539464), (647, 32144912), (1052, 19769732), (1294, 16072456), (2104, 9884866), (2588, 8036228), (4208, 4942433), (5176, 4018114), (7639, 2722576), (10352, 2009057), (15278, 1361288), (30556, 680644), (61112, 340322), (122224, 170161)]