20090615

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{4261}}^1$

素因数の和:4330

約数の個数: 16

約数和(自身を含む): 25776576

約数和(自身を除く): 5685961

約数列:

[1, 5, 23, 41, 115, 205, 943, 4261, 4715, 21305, 98003, 174701, 490015, 873505, 4018123, 20090615]

約数ペア:

[(1, 20090615), (5, 4018123), (23, 873505), (41, 490015), (115, 174701), (205, 98003), (943, 21305), (4261, 4715)]