28605040

素因数分解:

$2^4\times 5^1\times {\mathrm{357563}}^1$

素因数の和:357576

約数の個数: 20

約数和(自身を含む): 66506904

約数和(自身を除く): 37901864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 357563, 715126, 1430252, 1787815, 2860504, 3575630, 5721008, 7151260, 14302520, 28605040]

約数ペア:

[(1, 28605040), (2, 14302520), (4, 7151260), (5, 5721008), (8, 3575630), (10, 2860504), (16, 1787815), (20, 1430252), (40, 715126), (80, 357563)]