80497870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{983}}^1$

素因数の和:1440

約数の個数: 32

約数和(自身を含む): 153031680

約数和(自身を除く): 72533810

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 431, 862, 983, 1966, 2155, 4310, 4915, 8189, 9830, 16378, 18677, 37354, 40945, 81890, 93385, 186770, 423673, 847346, 2118365, 4236730, 8049787, 16099574, 40248935, 80497870]

約数ペア:

[(1, 80497870), (2, 40248935), (5, 16099574), (10, 8049787), (19, 4236730), (38, 2118365), (95, 847346), (190, 423673), (431, 186770), (862, 93385), (983, 81890), (1966, 40945), (2155, 37354), (4310, 18677), (4915, 16378), (8189, 9830)]