20715100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{293}}^1$

素因数の和:415

約数の個数: 72

約数和(自身を含む): 52059168

約数和(自身を除く): 31344068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 101, 140, 175, 202, 293, 350, 404, 505, 586, 700, 707, 1010, 1172, 1414, 1465, 2020, 2051, 2525, 2828, 2930, 3535, 4102, 5050, 5860, 7070, 7325, 8204, 10100, 10255, 14140, 14650, 17675, 20510, 29300, 29593, 35350, 41020, 51275, 59186, 70700, 102550, 118372, 147965, 205100, 207151, 295930, 414302, 591860, 739825, 828604, 1035755, 1479650, 2071510, 2959300, 4143020, 5178775, 10357550, 20715100]

約数ペア:

[(1, 20715100), (2, 10357550), (4, 5178775), (5, 4143020), (7, 2959300), (10, 2071510), (14, 1479650), (20, 1035755), (25, 828604), (28, 739825), (35, 591860), (50, 414302), (70, 295930), (100, 207151), (101, 205100), (140, 147965), (175, 118372), (202, 102550), (293, 70700), (350, 59186), (404, 51275), (505, 41020), (586, 35350), (700, 29593), (707, 29300), (1010, 20510), (1172, 17675), (1414, 14650), (1465, 14140), (2020, 10255), (2051, 10100), (2525, 8204), (2828, 7325), (2930, 7070), (3535, 5860), (4102, 5050)]