19767080

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1879}}^1$

素因数の和:2153

約数の個数: 32

約数和(自身を含む): 44668800

約数和(自身を除く): 24901720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 1879, 2104, 2630, 3758, 5260, 7516, 9395, 10520, 15032, 18790, 37580, 75160, 494177, 988354, 1976708, 2470885, 3953416, 4941770, 9883540, 19767080]

約数ペア:

[(1, 19767080), (2, 9883540), (4, 4941770), (5, 3953416), (8, 2470885), (10, 1976708), (20, 988354), (40, 494177), (263, 75160), (526, 37580), (1052, 18790), (1315, 15032), (1879, 10520), (2104, 9395), (2630, 7516), (3758, 5260)]