12897020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^3\times {\mathrm{53}}^1$

素因数の和:131

約数の個数: 48

約数和(自身を含む): 28848960

約数和(自身を除く): 15951940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 53, 92, 106, 115, 212, 230, 265, 460, 529, 530, 1058, 1060, 1219, 2116, 2438, 2645, 4876, 5290, 6095, 10580, 12167, 12190, 24334, 24380, 28037, 48668, 56074, 60835, 112148, 121670, 140185, 243340, 280370, 560740, 644851, 1289702, 2579404, 3224255, 6448510, 12897020]

約数ペア:

[(1, 12897020), (2, 6448510), (4, 3224255), (5, 2579404), (10, 1289702), (20, 644851), (23, 560740), (46, 280370), (53, 243340), (92, 140185), (106, 121670), (115, 112148), (212, 60835), (230, 56074), (265, 48668), (460, 28037), (529, 24380), (530, 24334), (1058, 12190), (1060, 12167), (1219, 10580), (2116, 6095), (2438, 5290), (2645, 4876)]