20356790

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{5639}}^1$

素因数の和:5684

約数の個数: 24

約数和(自身を含む): 38679120

約数和(自身を除く): 18322330

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 5639, 11278, 28195, 56390, 107141, 214282, 535705, 1071410, 2035679, 4071358, 10178395, 20356790]

約数ペア:

[(1, 20356790), (2, 10178395), (5, 4071358), (10, 2035679), (19, 1071410), (38, 535705), (95, 214282), (190, 107141), (361, 56390), (722, 28195), (1805, 11278), (3610, 5639)]