2045440520

素因数分解:

$2^3\times 5^1\times {\mathrm{51136013}}^1$

素因数の和:51136024

約数の個数: 16

約数和(自身を含む): 4602241260

約数和(自身を除く): 2556800740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 51136013, 102272026, 204544052, 255680065, 409088104, 511360130, 1022720260, 2045440520]

約数ペア:

[(1, 2045440520), (2, 1022720260), (4, 511360130), (5, 409088104), (8, 255680065), (10, 204544052), (20, 102272026), (40, 51136013)]