81240428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{2791}}^1$

素因数の和:3197

約数の個数: 24

約数和(自身を含む): 150097920

約数和(自身を除く): 68857492

約数列:

[1, 2, 4, 19, 38, 76, 383, 766, 1532, 2791, 5582, 7277, 11164, 14554, 29108, 53029, 106058, 212116, 1068953, 2137906, 4275812, 20310107, 40620214, 81240428]

約数ペア:

[(1, 81240428), (2, 40620214), (4, 20310107), (19, 4275812), (38, 2137906), (76, 1068953), (383, 212116), (766, 106058), (1532, 53029), (2791, 29108), (5582, 14554), (7277, 11164)]