28902020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4801}}^1$

素因数の和:4860

約数の個数: 48

約数和(自身を含む): 70992768

約数和(自身を除く): 42090748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 4801, 6020, 9602, 19204, 24005, 33607, 48010, 67214, 96020, 134428, 168035, 206443, 336070, 412886, 672140, 825772, 1032215, 1445101, 2064430, 2890202, 4128860, 5780404, 7225505, 14451010, 28902020]

約数ペア:

[(1, 28902020), (2, 14451010), (4, 7225505), (5, 5780404), (7, 4128860), (10, 2890202), (14, 2064430), (20, 1445101), (28, 1032215), (35, 825772), (43, 672140), (70, 412886), (86, 336070), (140, 206443), (172, 168035), (215, 134428), (301, 96020), (430, 67214), (602, 48010), (860, 33607), (1204, 24005), (1505, 19204), (3010, 9602), (4801, 6020)]