28101880

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8893}}^1$

素因数の和:8983

約数の個数: 32

約数和(自身を含む): 64036800

約数和(自身を除く): 35934920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 8893, 17786, 35572, 44465, 71144, 88930, 177860, 355720, 702547, 1405094, 2810188, 3512735, 5620376, 7025470, 14050940, 28101880]

約数ペア:

[(1, 28101880), (2, 14050940), (4, 7025470), (5, 5620376), (8, 3512735), (10, 2810188), (20, 1405094), (40, 702547), (79, 355720), (158, 177860), (316, 88930), (395, 71144), (632, 44465), (790, 35572), (1580, 17786), (3160, 8893)]