61965880

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{3181}}^1$

素因数の和:3679

約数の個数: 32

約数和(自身を含む): 139753440

約数和(自身を除く): 77787560

約数列:

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

約数ペア:

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