28344820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{691}}^1$

素因数の和:1000

約数の個数: 48

約数和(自身を含む): 68358528

約数和(自身を除く): 40013708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 293, 586, 691, 1172, 1382, 1465, 2051, 2764, 2930, 3455, 4102, 4837, 5860, 6910, 8204, 9674, 10255, 13820, 19348, 20510, 24185, 41020, 48370, 96740, 202463, 404926, 809852, 1012315, 1417241, 2024630, 2834482, 4049260, 5668964, 7086205, 14172410, 28344820]

約数ペア:

[(1, 28344820), (2, 14172410), (4, 7086205), (5, 5668964), (7, 4049260), (10, 2834482), (14, 2024630), (20, 1417241), (28, 1012315), (35, 809852), (70, 404926), (140, 202463), (293, 96740), (586, 48370), (691, 41020), (1172, 24185), (1382, 20510), (1465, 19348), (2051, 13820), (2764, 10255), (2930, 9674), (3455, 8204), (4102, 6910), (4837, 5860)]