16678390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2141}}^1$

素因数の和:2208

約数の個数: 32

約数和(自身を含む): 32387040

約数和(自身を除く): 15708650

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 2141, 3895, 4282, 7790, 10705, 21410, 40679, 81358, 87781, 175562, 203395, 406790, 438905, 877810, 1667839, 3335678, 8339195, 16678390]

約数ペア:

[(1, 16678390), (2, 8339195), (5, 3335678), (10, 1667839), (19, 877810), (38, 438905), (41, 406790), (82, 203395), (95, 175562), (190, 87781), (205, 81358), (410, 40679), (779, 21410), (1558, 10705), (2141, 7790), (3895, 4282)]