72574780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{51109}}^1$

素因数の和:51189

約数の個数: 24

約数和(自身を含む): 154556640

約数和(自身を除く): 81981860

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 51109, 102218, 204436, 255545, 511090, 1022180, 3628739, 7257478, 14514956, 18143695, 36287390, 72574780]

約数ペア:

[(1, 72574780), (2, 36287390), (4, 18143695), (5, 14514956), (10, 7257478), (20, 3628739), (71, 1022180), (142, 511090), (284, 255545), (355, 204436), (710, 102218), (1420, 51109)]