51982720

素因数分解:

$2^7\times 5^1\times {\mathrm{81223}}^1$

素因数の和:81242

約数の個数: 32

約数和(自身を含む): 124272720

約数和(自身を除く): 72290000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 81223, 162446, 324892, 406115, 649784, 812230, 1299568, 1624460, 2599136, 3248920, 5198272, 6497840, 10396544, 12995680, 25991360, 51982720]

約数ペア:

[(1, 51982720), (2, 25991360), (4, 12995680), (5, 10396544), (8, 6497840), (10, 5198272), (16, 3248920), (20, 2599136), (32, 1624460), (40, 1299568), (64, 812230), (80, 649784), (128, 406115), (160, 324892), (320, 162446), (640, 81223)]