839930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1$

素因数の和:111

約数の個数: 48

約数和(自身を含む): 1897344

約数和(自身を除く): 1057414

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 71, 91, 130, 142, 169, 182, 338, 355, 455, 497, 710, 845, 910, 923, 994, 1183, 1690, 1846, 2366, 2485, 4615, 4970, 5915, 6461, 9230, 11830, 11999, 12922, 23998, 32305, 59995, 64610, 83993, 119990, 167986, 419965, 839930]

約数ペア:

[(1, 839930), (2, 419965), (5, 167986), (7, 119990), (10, 83993), (13, 64610), (14, 59995), (26, 32305), (35, 23998), (65, 12922), (70, 11999), (71, 11830), (91, 9230), (130, 6461), (142, 5915), (169, 4970), (182, 4615), (338, 2485), (355, 2366), (455, 1846), (497, 1690), (710, 1183), (845, 994), (910, 923)]