261330200

素因数分解:

$2^3\times 5^2\times {\mathrm{389}}^1\times {\mathrm{3359}}^1$

素因数の和:3764

約数の個数: 48

約数和(自身を含む): 609336000

約数和(自身を除く): 348005800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 389, 778, 1556, 1945, 3112, 3359, 3890, 6718, 7780, 9725, 13436, 15560, 16795, 19450, 26872, 33590, 38900, 67180, 77800, 83975, 134360, 167950, 335900, 671800, 1306651, 2613302, 5226604, 6533255, 10453208, 13066510, 26133020, 32666275, 52266040, 65332550, 130665100, 261330200]

約数ペア:

[(1, 261330200), (2, 130665100), (4, 65332550), (5, 52266040), (8, 32666275), (10, 26133020), (20, 13066510), (25, 10453208), (40, 6533255), (50, 5226604), (100, 2613302), (200, 1306651), (389, 671800), (778, 335900), (1556, 167950), (1945, 134360), (3112, 83975), (3359, 77800), (3890, 67180), (6718, 38900), (7780, 33590), (9725, 26872), (13436, 19450), (15560, 16795)]