1289240

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{193}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 2933280

約数和(自身を除く): 1644040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 193, 334, 386, 668, 772, 835, 965, 1336, 1544, 1670, 1930, 3340, 3860, 6680, 7720, 32231, 64462, 128924, 161155, 257848, 322310, 644620, 1289240]

約数ペア:

[(1, 1289240), (2, 644620), (4, 322310), (5, 257848), (8, 161155), (10, 128924), (20, 64462), (40, 32231), (167, 7720), (193, 6680), (334, 3860), (386, 3340), (668, 1930), (772, 1670), (835, 1544), (965, 1336)]