19660030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3517}}^1$

素因数の和:3580

約数の個数: 32

約数和(自身を含む): 39007584

約数和(自身を除く): 19347554

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 3517, 5590, 7034, 17585, 35170, 45721, 91442, 151231, 228605, 302462, 457210, 756155, 1512310, 1966003, 3932006, 9830015, 19660030]

約数ペア:

[(1, 19660030), (2, 9830015), (5, 3932006), (10, 1966003), (13, 1512310), (26, 756155), (43, 457210), (65, 302462), (86, 228605), (130, 151231), (215, 91442), (430, 45721), (559, 35170), (1118, 17585), (2795, 7034), (3517, 5590)]