20515638745

素因数分解:

$5^1\times 7^2\times {\mathrm{1097}}^1\times {\mathrm{76333}}^1$

素因数の和:77449

約数の個数: 24

約数和(自身を含む): 28664638344

約数和(自身を除く): 8148999599

約数列:

[1, 5, 7, 35, 49, 245, 1097, 5485, 7679, 38395, 53753, 76333, 268765, 381665, 534331, 2671655, 3740317, 18701585, 83737301, 418686505, 586161107, 2930805535, 4103127749, 20515638745]

約数ペア:

[(1, 20515638745), (5, 4103127749), (7, 2930805535), (35, 586161107), (49, 418686505), (245, 83737301), (1097, 18701585), (5485, 3740317), (7679, 2671655), (38395, 534331), (53753, 381665), (76333, 268765)]