28729160

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16703}}^1$

素因数の和:16757

約数の個数: 32

約数和(自身を含む): 66147840

約数和(自身を除く): 37418680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16703, 33406, 66812, 83515, 133624, 167030, 334060, 668120, 718229, 1436458, 2872916, 3591145, 5745832, 7182290, 14364580, 28729160]

約数ペア:

[(1, 28729160), (2, 14364580), (4, 7182290), (5, 5745832), (8, 3591145), (10, 2872916), (20, 1436458), (40, 718229), (43, 668120), (86, 334060), (172, 167030), (215, 133624), (344, 83515), (430, 66812), (860, 33406), (1720, 16703)]