28708880

素因数分解:

$2^4\times 5^1\times {\mathrm{358861}}^1$

素因数の和:358874

約数の個数: 20

約数和(自身を含む): 66748332

約数和(自身を除く): 38039452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 358861, 717722, 1435444, 1794305, 2870888, 3588610, 5741776, 7177220, 14354440, 28708880]

約数ペア:

[(1, 28708880), (2, 14354440), (4, 7177220), (5, 5741776), (8, 3588610), (10, 2870888), (16, 1794305), (20, 1435444), (40, 717722), (80, 358861)]