28306160

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{5281}}^1$

素因数の和:5361

約数の個数: 40

約数和(自身を含む): 66806736

約数和(自身を除く): 38500576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5281, 5360, 10562, 21124, 26405, 42248, 52810, 84496, 105620, 211240, 353827, 422480, 707654, 1415308, 1769135, 2830616, 3538270, 5661232, 7076540, 14153080, 28306160]

約数ペア:

[(1, 28306160), (2, 14153080), (4, 7076540), (5, 5661232), (8, 3538270), (10, 2830616), (16, 1769135), (20, 1415308), (40, 707654), (67, 422480), (80, 353827), (134, 211240), (268, 105620), (335, 84496), (536, 52810), (670, 42248), (1072, 26405), (1340, 21124), (2680, 10562), (5281, 5360)]