16697980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{64223}}^1$

素因数の和:64245

約数の個数: 24

約数和(自身を含む): 37763712

約数和(自身を除く): 21065732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 64223, 128446, 256892, 321115, 642230, 834899, 1284460, 1669798, 3339596, 4174495, 8348990, 16697980]

約数ペア:

[(1, 16697980), (2, 8348990), (4, 4174495), (5, 3339596), (10, 1669798), (13, 1284460), (20, 834899), (26, 642230), (52, 321115), (65, 256892), (130, 128446), (260, 64223)]