81485552

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{57223}}^1$

素因数の和:57320

約数の個数: 20

約数和(自身を含む): 159654960

約数和(自身を除く): 78169408

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 57223, 114446, 228892, 457784, 915568, 5092847, 10185694, 20371388, 40742776, 81485552]

約数ペア:

[(1, 81485552), (2, 40742776), (4, 20371388), (8, 10185694), (16, 5092847), (89, 915568), (178, 457784), (356, 228892), (712, 114446), (1424, 57223)]