215419250

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:780

約数の個数: 64

約数和(自身を含む): 427489920

約数和(自身を除く): 212070670

約数列:

[1, 2, 5, 10, 25, 29, 43, 50, 58, 86, 125, 145, 215, 250, 290, 430, 691, 725, 1075, 1247, 1382, 1450, 2150, 2494, 3455, 3625, 5375, 6235, 6910, 7250, 10750, 12470, 17275, 20039, 29713, 31175, 34550, 40078, 59426, 62350, 86375, 100195, 148565, 155875, 172750, 200390, 297130, 311750, 500975, 742825, 861677, 1001950, 1485650, 1723354, 2504875, 3714125, 4308385, 5009750, 7428250, 8616770, 21541925, 43083850, 107709625, 215419250]

約数ペア:

[(1, 215419250), (2, 107709625), (5, 43083850), (10, 21541925), (25, 8616770), (29, 7428250), (43, 5009750), (50, 4308385), (58, 3714125), (86, 2504875), (125, 1723354), (145, 1485650), (215, 1001950), (250, 861677), (290, 742825), (430, 500975), (691, 311750), (725, 297130), (1075, 200390), (1247, 172750), (1382, 155875), (1450, 148565), (2150, 100195), (2494, 86375), (3455, 62350), (3625, 59426), (5375, 40078), (6235, 34550), (6910, 31175), (7250, 29713), (10750, 20039), (12470, 17275)]