21568750

素因数分解:

$2^1\times 5^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:80

約数の個数: 96

約数和(自身を含む): 50621760

約数和(自身を除く): 29053010

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 29, 34, 35, 50, 58, 70, 85, 119, 125, 145, 170, 175, 203, 238, 250, 290, 350, 406, 425, 493, 595, 625, 725, 850, 875, 986, 1015, 1190, 1250, 1450, 1750, 2030, 2125, 2465, 2975, 3125, 3451, 3625, 4250, 4375, 4930, 5075, 5950, 6250, 6902, 7250, 8750, 10150, 10625, 12325, 14875, 17255, 18125, 21250, 21875, 24650, 25375, 29750, 34510, 36250, 43750, 50750, 53125, 61625, 74375, 86275, 90625, 106250, 123250, 126875, 148750, 172550, 181250, 253750, 308125, 371875, 431375, 616250, 634375, 743750, 862750, 1268750, 1540625, 2156875, 3081250, 4313750, 10784375, 21568750]

約数ペア:

[(1, 21568750), (2, 10784375), (5, 4313750), (7, 3081250), (10, 2156875), (14, 1540625), (17, 1268750), (25, 862750), (29, 743750), (34, 634375), (35, 616250), (50, 431375), (58, 371875), (70, 308125), (85, 253750), (119, 181250), (125, 172550), (145, 148750), (170, 126875), (175, 123250), (203, 106250), (238, 90625), (250, 86275), (290, 74375), (350, 61625), (406, 53125), (425, 50750), (493, 43750), (595, 36250), (625, 34510), (725, 29750), (850, 25375), (875, 24650), (986, 21875), (1015, 21250), (1190, 18125), (1250, 17255), (1450, 14875), (1750, 12325), (2030, 10625), (2125, 10150), (2465, 8750), (2975, 7250), (3125, 6902), (3451, 6250), (3625, 5950), (4250, 5075), (4375, 4930)]