28275340

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{21101}}^1$

素因数の和:21177

約数の個数: 24

約数和(自身を含む): 60267312

約数和(自身を除く): 31991972

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 21101, 42202, 84404, 105505, 211010, 422020, 1413767, 2827534, 5655068, 7068835, 14137670, 28275340]

約数ペア:

[(1, 28275340), (2, 14137670), (4, 7068835), (5, 5655068), (10, 2827534), (20, 1413767), (67, 422020), (134, 211010), (268, 105505), (335, 84404), (670, 42202), (1340, 21101)]