1015940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{643}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 2163840

約数和(自身を除く): 1147900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 643, 790, 1286, 1580, 2572, 3215, 6430, 12860, 50797, 101594, 203188, 253985, 507970, 1015940]

約数ペア:

[(1, 1015940), (2, 507970), (4, 253985), (5, 203188), (10, 101594), (20, 50797), (79, 12860), (158, 6430), (316, 3215), (395, 2572), (643, 1580), (790, 1286)]