816280855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{947}}^1$

素因数の和:1203

約数の個数: 32

約数和(自身を含む): 1075032000

約数和(自身を除く): 258751145

約数列:

[1, 5, 13, 65, 89, 149, 445, 745, 947, 1157, 1937, 4735, 5785, 9685, 12311, 13261, 61555, 66305, 84283, 141103, 172393, 421415, 705515, 861965, 1095679, 1834339, 5478395, 9171695, 12558167, 62790835, 163256171, 816280855]

約数ペア:

[(1, 816280855), (5, 163256171), (13, 62790835), (65, 12558167), (89, 9171695), (149, 5478395), (445, 1834339), (745, 1095679), (947, 861965), (1157, 705515), (1937, 421415), (4735, 172393), (5785, 141103), (9685, 84283), (12311, 66305), (13261, 61555)]