20742900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{69143}}^1$

素因数の和:69160

約数の個数: 36

約数和(自身を含む): 60016992

約数和(自身を除く): 39274092

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 69143, 138286, 207429, 276572, 345715, 414858, 691430, 829716, 1037145, 1382860, 1728575, 2074290, 3457150, 4148580, 5185725, 6914300, 10371450, 20742900]

約数ペア:

[(1, 20742900), (2, 10371450), (3, 6914300), (4, 5185725), (5, 4148580), (6, 3457150), (10, 2074290), (12, 1728575), (15, 1382860), (20, 1037145), (25, 829716), (30, 691430), (50, 414858), (60, 345715), (75, 276572), (100, 207429), (150, 138286), (300, 69143)]