28647220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{204623}}^1$

素因数の和:204639

約数の個数: 24

約数和(自身を含む): 68753664

約数和(自身を除く): 40106444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 204623, 409246, 818492, 1023115, 1432361, 2046230, 2864722, 4092460, 5729444, 7161805, 14323610, 28647220]

約数ペア:

[(1, 28647220), (2, 14323610), (4, 7161805), (5, 5729444), (7, 4092460), (10, 2864722), (14, 2046230), (20, 1432361), (28, 1023115), (35, 818492), (70, 409246), (140, 204623)]