123931760

素因数分解:

$2^4\times 5^1\times {\mathrm{487}}^1\times {\mathrm{3181}}^1$

素因数の和:3681

約数の個数: 40

約数和(自身を含む): 288823776

約数和(自身を除く): 164892016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 487, 974, 1948, 2435, 3181, 3896, 4870, 6362, 7792, 9740, 12724, 15905, 19480, 25448, 31810, 38960, 50896, 63620, 127240, 254480, 1549147, 3098294, 6196588, 7745735, 12393176, 15491470, 24786352, 30982940, 61965880, 123931760]

約数ペア:

[(1, 123931760), (2, 61965880), (4, 30982940), (5, 24786352), (8, 15491470), (10, 12393176), (16, 7745735), (20, 6196588), (40, 3098294), (80, 1549147), (487, 254480), (974, 127240), (1948, 63620), (2435, 50896), (3181, 38960), (3896, 31810), (4870, 25448), (6362, 19480), (7792, 15905), (9740, 12724)]