8978008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{499}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 18270000

約数和(自身を除く): 9291992

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 173, 346, 499, 692, 998, 1384, 1996, 2249, 3992, 4498, 6487, 8996, 12974, 17992, 25948, 51896, 86327, 172654, 345308, 690616, 1122251, 2244502, 4489004, 8978008]

約数ペア:

[(1, 8978008), (2, 4489004), (4, 2244502), (8, 1122251), (13, 690616), (26, 345308), (52, 172654), (104, 86327), (173, 51896), (346, 25948), (499, 17992), (692, 12974), (998, 8996), (1384, 6487), (1996, 4498), (2249, 3992)]