7140005

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1321}}^1$

素因数の和:1396

約数の個数: 16

約数和(自身を含む): 9137664

約数和(自身を除く): 1997659

約数列:

[1, 5, 23, 47, 115, 235, 1081, 1321, 5405, 6605, 30383, 62087, 151915, 310435, 1428001, 7140005]

約数ペア:

[(1, 7140005), (5, 1428001), (23, 310435), (47, 151915), (115, 62087), (235, 30383), (1081, 6605), (1321, 5405)]