20701480

素因数分解:

$2^3\times 5^1\times {\mathrm{673}}^1\times {\mathrm{769}}^1$

素因数の和:1453

約数の個数: 32

約数和(自身を含む): 46708200

約数和(自身を除く): 26006720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 673, 769, 1346, 1538, 2692, 3076, 3365, 3845, 5384, 6152, 6730, 7690, 13460, 15380, 26920, 30760, 517537, 1035074, 2070148, 2587685, 4140296, 5175370, 10350740, 20701480]

約数ペア:

[(1, 20701480), (2, 10350740), (4, 5175370), (5, 4140296), (8, 2587685), (10, 2070148), (20, 1035074), (40, 517537), (673, 30760), (769, 26920), (1346, 15380), (1538, 13460), (2692, 7690), (3076, 6730), (3365, 6152), (3845, 5384)]