28407800

素因数分解:

$2^3\times 5^2\times {\mathrm{142039}}^1$

素因数の和:142055

約数の個数: 24

約数和(自身を含む): 66048600

約数和(自身を除く): 37640800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 142039, 284078, 568156, 710195, 1136312, 1420390, 2840780, 3550975, 5681560, 7101950, 14203900, 28407800]

約数ペア:

[(1, 28407800), (2, 14203900), (4, 7101950), (5, 5681560), (8, 3550975), (10, 2840780), (20, 1420390), (25, 1136312), (40, 710195), (50, 568156), (100, 284078), (200, 142039)]