20637200

素因数分解:

$2^4\times 5^2\times {\mathrm{51593}}^1$

素因数の和:51611

約数の個数: 30

約数和(自身を含む): 49581834

約数和(自身を除く): 28944634

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51593, 103186, 206372, 257965, 412744, 515930, 825488, 1031860, 1289825, 2063720, 2579650, 4127440, 5159300, 10318600, 20637200]

約数ペア:

[(1, 20637200), (2, 10318600), (4, 5159300), (5, 4127440), (8, 2579650), (10, 2063720), (16, 1289825), (20, 1031860), (25, 825488), (40, 515930), (50, 412744), (80, 257965), (100, 206372), (200, 103186), (400, 51593)]