80412980

素因数分解:

$2^2\times 5^1\times {\mathrm{1493}}^1\times {\mathrm{2693}}^1$

素因数の和:4195

約数の個数: 24

約数和(自身を含む): 169043112

約数和(自身を除く): 88630132

約数列:

[1, 2, 4, 5, 10, 20, 1493, 2693, 2986, 5386, 5972, 7465, 10772, 13465, 14930, 26930, 29860, 53860, 4020649, 8041298, 16082596, 20103245, 40206490, 80412980]

約数ペア:

[(1, 80412980), (2, 40206490), (4, 20103245), (5, 16082596), (10, 8041298), (20, 4020649), (1493, 53860), (2693, 29860), (2986, 26930), (5386, 14930), (5972, 13465), (7465, 10772)]