78904040

素因数分解:

$2^3\times 5^1\times {\mathrm{947}}^1\times {\mathrm{2083}}^1$

素因数の和:3041

約数の個数: 32

約数和(自身を含む): 177806880

約数和(自身を除く): 98902840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 947, 1894, 2083, 3788, 4166, 4735, 7576, 8332, 9470, 10415, 16664, 18940, 20830, 37880, 41660, 83320, 1972601, 3945202, 7890404, 9863005, 15780808, 19726010, 39452020, 78904040]

約数ペア:

[(1, 78904040), (2, 39452020), (4, 19726010), (5, 15780808), (8, 9863005), (10, 7890404), (20, 3945202), (40, 1972601), (947, 83320), (1894, 41660), (2083, 37880), (3788, 20830), (4166, 18940), (4735, 16664), (7576, 10415), (8332, 9470)]