78466540

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{47269}}^1$

素因数の和:47361

約数の個数: 24

約数和(自身を含む): 166768560

約数和(自身を除く): 88302020

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 47269, 94538, 189076, 236345, 472690, 945380, 3923327, 7846654, 15693308, 19616635, 39233270, 78466540]

約数ペア:

[(1, 78466540), (2, 39233270), (4, 19616635), (5, 15693308), (10, 7846654), (20, 3923327), (83, 945380), (166, 472690), (332, 236345), (415, 189076), (830, 94538), (1660, 47269)]