989030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:284

約数の個数: 32

約数和(自身を含む): 2073600

約数和(自身を除く): 1084570

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 199, 355, 398, 497, 710, 994, 995, 1393, 1990, 2485, 2786, 4970, 6965, 13930, 14129, 28258, 70645, 98903, 141290, 197806, 494515, 989030]

約数ペア:

[(1, 989030), (2, 494515), (5, 197806), (7, 141290), (10, 98903), (14, 70645), (35, 28258), (70, 14129), (71, 13930), (142, 6965), (199, 4970), (355, 2786), (398, 2485), (497, 1990), (710, 1393), (994, 995)]