20781284170

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2879}}^1\times {\mathrm{9137}}^1$

素因数の和:12102

約数の個数: 32

約数和(自身を含む): 37897113600

約数和(自身を除く): 17115829430

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 2879, 5758, 9137, 14395, 18274, 28790, 45685, 91370, 227441, 454882, 721823, 1137205, 1443646, 2274410, 3609115, 7218230, 26305423, 52610846, 131527115, 263054230, 2078128417, 4156256834, 10390642085, 20781284170]

約数ペア:

[(1, 20781284170), (2, 10390642085), (5, 4156256834), (10, 2078128417), (79, 263054230), (158, 131527115), (395, 52610846), (790, 26305423), (2879, 7218230), (5758, 3609115), (9137, 2274410), (14395, 1443646), (18274, 1137205), (28790, 721823), (45685, 454882), (91370, 227441)]