978327400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{113759}}^1$

素因数の和:113818

約数の個数: 48

約数和(自身を含む): 2327529600

約数和(自身を除く): 1349202200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 4300, 8600, 113759, 227518, 455036, 568795, 910072, 1137590, 2275180, 2843975, 4550360, 4891637, 5687950, 9783274, 11375900, 19566548, 22751800, 24458185, 39133096, 48916370, 97832740, 122290925, 195665480, 244581850, 489163700, 978327400]

約数ペア:

[(1, 978327400), (2, 489163700), (4, 244581850), (5, 195665480), (8, 122290925), (10, 97832740), (20, 48916370), (25, 39133096), (40, 24458185), (43, 22751800), (50, 19566548), (86, 11375900), (100, 9783274), (172, 5687950), (200, 4891637), (215, 4550360), (344, 2843975), (430, 2275180), (860, 1137590), (1075, 910072), (1720, 568795), (2150, 455036), (4300, 227518), (8600, 113759)]