13721230

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{281}}^1$

素因数の和:564

約数の個数: 32

約数和(自身を含む): 26192160

約数和(自身を除く): 12470930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 257, 281, 514, 562, 1285, 1405, 2570, 2810, 4883, 5339, 9766, 10678, 24415, 26695, 48830, 53390, 72217, 144434, 361085, 722170, 1372123, 2744246, 6860615, 13721230]

約数ペア:

[(1, 13721230), (2, 6860615), (5, 2744246), (10, 1372123), (19, 722170), (38, 361085), (95, 144434), (190, 72217), (257, 53390), (281, 48830), (514, 26695), (562, 24415), (1285, 10678), (1405, 9766), (2570, 5339), (2810, 4883)]