54888140

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{13931}}^1$

素因数の和:14137

約数の個数: 24

約数和(自身を含む): 115858512

約数和(自身を除く): 60970372

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 13931, 27862, 55724, 69655, 139310, 278620, 2744407, 5488814, 10977628, 13722035, 27444070, 54888140]

約数ペア:

[(1, 54888140), (2, 27444070), (4, 13722035), (5, 10977628), (10, 5488814), (20, 2744407), (197, 278620), (394, 139310), (788, 69655), (985, 55724), (1970, 27862), (3940, 13931)]