81491612

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{641}}^1\times {\mathrm{859}}^1$

素因数の和:1541

約数の個数: 24

約数和(自身を含む): 146863920

約数和(自身を除く): 65372308

約数列:

[1, 2, 4, 37, 74, 148, 641, 859, 1282, 1718, 2564, 3436, 23717, 31783, 47434, 63566, 94868, 127132, 550619, 1101238, 2202476, 20372903, 40745806, 81491612]

約数ペア:

[(1, 81491612), (2, 40745806), (4, 20372903), (37, 2202476), (74, 1101238), (148, 550619), (641, 127132), (859, 94868), (1282, 63566), (1718, 47434), (2564, 31783), (3436, 23717)]