39989680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26309}}^1$

素因数の和:26341

約数の個数: 40

約数和(自身を含む): 97873200

約数和(自身を除く): 57883520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 26309, 52618, 105236, 131545, 210472, 263090, 420944, 499871, 526180, 999742, 1052360, 1999484, 2104720, 2499355, 3998968, 4998710, 7997936, 9997420, 19994840, 39989680]

約数ペア:

[(1, 39989680), (2, 19994840), (4, 9997420), (5, 7997936), (8, 4998710), (10, 3998968), (16, 2499355), (19, 2104720), (20, 1999484), (38, 1052360), (40, 999742), (76, 526180), (80, 499871), (95, 420944), (152, 263090), (190, 210472), (304, 131545), (380, 105236), (760, 52618), (1520, 26309)]