78560080

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13831}}^1$

素因数の和:13915

約数の個数: 40

約数和(自身を含む): 185238144

約数和(自身を除く): 106678064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 13831, 27662, 55324, 69155, 110648, 138310, 221296, 276620, 553240, 982001, 1106480, 1964002, 3928004, 4910005, 7856008, 9820010, 15712016, 19640020, 39280040, 78560080]

約数ペア:

[(1, 78560080), (2, 39280040), (4, 19640020), (5, 15712016), (8, 9820010), (10, 7856008), (16, 4910005), (20, 3928004), (40, 1964002), (71, 1106480), (80, 982001), (142, 553240), (284, 276620), (355, 221296), (568, 138310), (710, 110648), (1136, 69155), (1420, 55324), (2840, 27662), (5680, 13831)]