20198890738

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{523}}^1\times {\mathrm{28027}}^1$

素因数の和:28618

約数の個数: 32

約数和(自身を含む): 33309372096

約数和(自身を除く): 13110481358

約数列:

[1, 2, 13, 26, 53, 106, 523, 689, 1046, 1378, 6799, 13598, 27719, 28027, 55438, 56054, 360347, 364351, 720694, 728702, 1485431, 2970862, 14658121, 19310603, 29316242, 38621206, 190555573, 381111146, 776880413, 1553760826, 10099445369, 20198890738]

約数ペア:

[(1, 20198890738), (2, 10099445369), (13, 1553760826), (26, 776880413), (53, 381111146), (106, 190555573), (523, 38621206), (689, 29316242), (1046, 19310603), (1378, 14658121), (6799, 2970862), (13598, 1485431), (27719, 728702), (28027, 720694), (55438, 364351), (56054, 360347)]