39760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1$

素因数の和:91

約数の個数: 40

約数和(自身を含む): 107136

約数和(自身を除く): 67376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 497, 560, 568, 710, 994, 1136, 1420, 1988, 2485, 2840, 3976, 4970, 5680, 7952, 9940, 19880, 39760]

約数ペア:

[(1, 39760), (2, 19880), (4, 9940), (5, 7952), (7, 5680), (8, 4970), (10, 3976), (14, 2840), (16, 2485), (20, 1988), (28, 1420), (35, 1136), (40, 994), (56, 710), (70, 568), (71, 560), (80, 497), (112, 355), (140, 284), (142, 280)]