53398820

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{13553}}^1$

素因数の和:13759

約数の個数: 24

約数和(自身を含む): 112715064

約数和(自身を除く): 59316244

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 13553, 27106, 54212, 67765, 135530, 271060, 2669941, 5339882, 10679764, 13349705, 26699410, 53398820]

約数ペア:

[(1, 53398820), (2, 26699410), (4, 13349705), (5, 10679764), (10, 5339882), (20, 2669941), (197, 271060), (394, 135530), (788, 67765), (985, 54212), (1970, 27106), (3940, 13553)]