20831330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6967}}^1$

素因数の和:7010

約数の個数: 32

約数和(自身を含む): 42142464

約数和(自身を除く): 21311134

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 6967, 13934, 34835, 69670, 90571, 160241, 181142, 320482, 452855, 801205, 905710, 1602410, 2083133, 4166266, 10415665, 20831330]

約数ペア:

[(1, 20831330), (2, 10415665), (5, 4166266), (10, 2083133), (13, 1602410), (23, 905710), (26, 801205), (46, 452855), (65, 320482), (115, 181142), (130, 160241), (230, 90571), (299, 69670), (598, 34835), (1495, 13934), (2990, 6967)]