80688900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{2663}}^1$

素因数の和:2781

約数の個数: 72

約数和(自身を含む): 235859904

約数和(自身を除く): 155171004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 101, 150, 202, 300, 303, 404, 505, 606, 1010, 1212, 1515, 2020, 2525, 2663, 3030, 5050, 5326, 6060, 7575, 7989, 10100, 10652, 13315, 15150, 15978, 26630, 30300, 31956, 39945, 53260, 66575, 79890, 133150, 159780, 199725, 266300, 268963, 399450, 537926, 798900, 806889, 1075852, 1344815, 1613778, 2689630, 3227556, 4034445, 5379260, 6724075, 8068890, 13448150, 16137780, 20172225, 26896300, 40344450, 80688900]

約数ペア:

[(1, 80688900), (2, 40344450), (3, 26896300), (4, 20172225), (5, 16137780), (6, 13448150), (10, 8068890), (12, 6724075), (15, 5379260), (20, 4034445), (25, 3227556), (30, 2689630), (50, 1613778), (60, 1344815), (75, 1075852), (100, 806889), (101, 798900), (150, 537926), (202, 399450), (300, 268963), (303, 266300), (404, 199725), (505, 159780), (606, 133150), (1010, 79890), (1212, 66575), (1515, 53260), (2020, 39945), (2525, 31956), (2663, 30300), (3030, 26630), (5050, 15978), (5326, 15150), (6060, 13315), (7575, 10652), (7989, 10100)]