20026790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1777}}^1$

素因数の和:1821

約数の個数: 48

約数和(自身を含む): 43781472

約数和(自身を除く): 23754682

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 70, 98, 115, 161, 230, 245, 322, 490, 805, 1127, 1610, 1777, 2254, 3554, 5635, 8885, 11270, 12439, 17770, 24878, 40871, 62195, 81742, 87073, 124390, 174146, 204355, 286097, 408710, 435365, 572194, 870730, 1430485, 2002679, 2860970, 4005358, 10013395, 20026790]

約数ペア:

[(1, 20026790), (2, 10013395), (5, 4005358), (7, 2860970), (10, 2002679), (14, 1430485), (23, 870730), (35, 572194), (46, 435365), (49, 408710), (70, 286097), (98, 204355), (115, 174146), (161, 124390), (230, 87073), (245, 81742), (322, 62195), (490, 40871), (805, 24878), (1127, 17770), (1610, 12439), (1777, 11270), (2254, 8885), (3554, 5635)]