2178410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1289}}^1$

素因数の和:1322

約数の個数: 24

約数和(自身を含む): 4249260

約数和(自身を除く): 2070850

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1289, 1690, 2578, 6445, 12890, 16757, 33514, 83785, 167570, 217841, 435682, 1089205, 2178410]

約数ペア:

[(1, 2178410), (2, 1089205), (5, 435682), (10, 217841), (13, 167570), (26, 83785), (65, 33514), (130, 16757), (169, 12890), (338, 6445), (845, 2578), (1289, 1690)]