28557520

素因数分解:

$2^4\times 5^1\times {\mathrm{356969}}^1$

素因数の和:356982

約数の個数: 20

約数和(自身を含む): 66396420

約数和(自身を除く): 37838900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 356969, 713938, 1427876, 1784845, 2855752, 3569690, 5711504, 7139380, 14278760, 28557520]

約数ペア:

[(1, 28557520), (2, 14278760), (4, 7139380), (5, 5711504), (8, 3569690), (10, 2855752), (16, 1784845), (20, 1427876), (40, 713938), (80, 356969)]