28400855

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{167}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 40449024

約数和(自身を除く): 12048169

約数列:

[1, 5, 7, 35, 43, 113, 167, 215, 301, 565, 791, 835, 1169, 1505, 3955, 4859, 5845, 7181, 18871, 24295, 34013, 35905, 50267, 94355, 132097, 170065, 251335, 660485, 811453, 4057265, 5680171, 28400855]

約数ペア:

[(1, 28400855), (5, 5680171), (7, 4057265), (35, 811453), (43, 660485), (113, 251335), (167, 170065), (215, 132097), (301, 94355), (565, 50267), (791, 35905), (835, 34013), (1169, 24295), (1505, 18871), (3955, 7181), (4859, 5845)]