16720285

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2411}}^1$

素因数の和:2508

約数の個数: 16

約数和(自身を含む): 21418560

約数和(自身を除く): 4698275

約数列:

[1, 5, 19, 73, 95, 365, 1387, 2411, 6935, 12055, 45809, 176003, 229045, 880015, 3344057, 16720285]

約数ペア:

[(1, 16720285), (5, 3344057), (19, 880015), (73, 229045), (95, 176003), (365, 45809), (1387, 12055), (2411, 6935)]