213205825

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{977}}^1$

素因数の和:1066

約数の個数: 48

約数和(自身を含む): 320158080

約数和(自身を除く): 106952255

約数列:

[1, 5, 7, 25, 29, 35, 43, 145, 175, 203, 215, 301, 725, 977, 1015, 1075, 1247, 1505, 4885, 5075, 6235, 6839, 7525, 8729, 24425, 28333, 31175, 34195, 42011, 43645, 141665, 170975, 198331, 210055, 218225, 294077, 708325, 991655, 1050275, 1218319, 1470385, 4958275, 6091595, 7351925, 8528233, 30457975, 42641165, 213205825]

約数ペア:

[(1, 213205825), (5, 42641165), (7, 30457975), (25, 8528233), (29, 7351925), (35, 6091595), (43, 4958275), (145, 1470385), (175, 1218319), (203, 1050275), (215, 991655), (301, 708325), (725, 294077), (977, 218225), (1015, 210055), (1075, 198331), (1247, 170975), (1505, 141665), (4885, 43645), (5075, 42011), (6235, 34195), (6839, 31175), (7525, 28333), (8729, 24425)]