40478090

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{45481}}^1$

素因数の和:45577

約数の個数: 16

約数和(自身を含む): 73680840

約数和(自身を除く): 33202750

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 45481, 90962, 227405, 454810, 4047809, 8095618, 20239045, 40478090]

約数ペア:

[(1, 40478090), (2, 20239045), (5, 8095618), (10, 4047809), (89, 454810), (178, 227405), (445, 90962), (890, 45481)]