20050616

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{389}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 40014000

約数和(自身を除く): 19963384

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 379, 389, 758, 778, 1516, 1556, 3032, 3112, 6443, 6613, 12886, 13226, 25772, 26452, 51544, 52904, 147431, 294862, 589724, 1179448, 2506327, 5012654, 10025308, 20050616]

約数ペア:

[(1, 20050616), (2, 10025308), (4, 5012654), (8, 2506327), (17, 1179448), (34, 589724), (68, 294862), (136, 147431), (379, 52904), (389, 51544), (758, 26452), (778, 25772), (1516, 13226), (1556, 12886), (3032, 6613), (3112, 6443)]