16990370

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{401}}^1$

素因数の和:650

約数の個数: 32

約数和(自身を含む): 32417280

約数和(自身を除く): 15426910

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 223, 401, 446, 802, 1115, 2005, 2230, 4010, 4237, 7619, 8474, 15238, 21185, 38095, 42370, 76190, 89423, 178846, 447115, 894230, 1699037, 3398074, 8495185, 16990370]

約数ペア:

[(1, 16990370), (2, 8495185), (5, 3398074), (10, 1699037), (19, 894230), (38, 447115), (95, 178846), (190, 89423), (223, 76190), (401, 42370), (446, 38095), (802, 21185), (1115, 15238), (2005, 8474), (2230, 7619), (4010, 4237)]