12687380

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{7643}}^1$

素因数の和:7735

約数の個数: 24

約数和(自身を含む): 26968032

約数和(自身を除く): 14280652

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 7643, 15286, 30572, 38215, 76430, 152860, 634369, 1268738, 2537476, 3171845, 6343690, 12687380]

約数ペア:

[(1, 12687380), (2, 6343690), (4, 3171845), (5, 2537476), (10, 1268738), (20, 634369), (83, 152860), (166, 76430), (332, 38215), (415, 30572), (830, 15286), (1660, 7643)]