20057485

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 28615680

約数和(自身を除く): 8558195

約数列:

[1, 5, 7, 35, 47, 89, 137, 235, 329, 445, 623, 685, 959, 1645, 3115, 4183, 4795, 6439, 12193, 20915, 29281, 32195, 45073, 60965, 85351, 146405, 225365, 426755, 573071, 2865355, 4011497, 20057485]

約数ペア:

[(1, 20057485), (5, 4011497), (7, 2865355), (35, 573071), (47, 426755), (89, 225365), (137, 146405), (235, 85351), (329, 60965), (445, 45073), (623, 32195), (685, 29281), (959, 20915), (1645, 12193), (3115, 6439), (4183, 4795)]