64720060

素因数分解:

$2^2\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{2659}}^1$

素因数の和:3885

約数の個数: 24

約数和(自身を含む): 136074960

約数和(自身を除く): 71354900

約数列:

[1, 2, 4, 5, 10, 20, 1217, 2434, 2659, 4868, 5318, 6085, 10636, 12170, 13295, 24340, 26590, 53180, 3236003, 6472006, 12944012, 16180015, 32360030, 64720060]

約数ペア:

[(1, 64720060), (2, 32360030), (4, 16180015), (5, 12944012), (10, 6472006), (20, 3236003), (1217, 53180), (2434, 26590), (2659, 24340), (4868, 13295), (5318, 12170), (6085, 10636)]