427961420

素因数分解:

$2^2\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{10979}}^1$

素因数の和:12937

約数の個数: 24

約数和(自身を含む): 899262000

約数和(自身を除く): 471300580

約数列:

[1, 2, 4, 5, 10, 20, 1949, 3898, 7796, 9745, 10979, 19490, 21958, 38980, 43916, 54895, 109790, 219580, 21398071, 42796142, 85592284, 106990355, 213980710, 427961420]

約数ペア:

[(1, 427961420), (2, 213980710), (4, 106990355), (5, 85592284), (10, 42796142), (20, 21398071), (1949, 219580), (3898, 109790), (7796, 54895), (9745, 43916), (10979, 38980), (19490, 21958)]