28018090

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{31481}}^1$

素因数の和:31577

約数の個数: 16

約数和(自身を含む): 51000840

約数和(自身を除く): 22982750

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 31481, 62962, 157405, 314810, 2801809, 5603618, 14009045, 28018090]

約数ペア:

[(1, 28018090), (2, 14009045), (5, 5603618), (10, 2801809), (89, 314810), (178, 157405), (445, 62962), (890, 31481)]