221473360

素因数分解:

$2^4\times 5^1\times {\mathrm{2768417}}^1$

素因数の和:2768430

約数の個数: 20

約数和(自身を含む): 514925748

約数和(自身を除く): 293452388

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2768417, 5536834, 11073668, 13842085, 22147336, 27684170, 44294672, 55368340, 110736680, 221473360]

約数ペア:

[(1, 221473360), (2, 110736680), (4, 55368340), (5, 44294672), (8, 27684170), (10, 22147336), (16, 13842085), (20, 11073668), (40, 5536834), (80, 2768417)]