19984045

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1\times {\mathrm{487}}^1$

素因数の和:804

約数の個数: 16

約数和(自身を含む): 24946560

約数和(自身を除く): 4962515

約数列:

[1, 5, 29, 145, 283, 487, 1415, 2435, 8207, 14123, 41035, 70615, 137821, 689105, 3996809, 19984045]

約数ペア:

[(1, 19984045), (5, 3996809), (29, 689105), (145, 137821), (283, 70615), (487, 41035), (1415, 14123), (2435, 8207)]