20727385

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 9685415

約数列:

[1, 5, 7, 19, 35, 71, 95, 133, 355, 439, 497, 665, 1349, 2195, 2485, 3073, 6745, 8341, 9443, 15365, 31169, 41705, 47215, 58387, 155845, 218183, 291935, 592211, 1090915, 2961055, 4145477, 20727385]

約数ペア:

[(1, 20727385), (5, 4145477), (7, 2961055), (19, 1090915), (35, 592211), (71, 291935), (95, 218183), (133, 155845), (355, 58387), (439, 47215), (497, 41705), (665, 31169), (1349, 15365), (2195, 9443), (2485, 8341), (3073, 6745)]