67121980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{47269}}^1$

素因数の和:47349

約数の個数: 24

約数和(自身を含む): 142944480

約数和(自身を除く): 75822500

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 47269, 94538, 189076, 236345, 472690, 945380, 3356099, 6712198, 13424396, 16780495, 33560990, 67121980]

約数ペア:

[(1, 67121980), (2, 33560990), (4, 16780495), (5, 13424396), (10, 6712198), (20, 3356099), (71, 945380), (142, 472690), (284, 236345), (355, 189076), (710, 94538), (1420, 47269)]