18740515

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1523}}^1$

素因数の和:1658

約数の個数: 16

約数和(自身を含む): 23701248

約数和(自身を除く): 4960733

約数列:

[1, 5, 23, 107, 115, 535, 1523, 2461, 7615, 12305, 35029, 162961, 175145, 814805, 3748103, 18740515]

約数ペア:

[(1, 18740515), (5, 3748103), (23, 814805), (107, 175145), (115, 162961), (535, 35029), (1523, 12305), (2461, 7615)]