978017860

素因数分解:

$2^2\times 5^1\times {\mathrm{6959}}^1\times {\mathrm{7027}}^1$

素因数の和:13995

約数の個数: 24

約数和(自身を含む): 2054424960

約数和(自身を除く): 1076407100

約数列:

[1, 2, 4, 5, 10, 20, 6959, 7027, 13918, 14054, 27836, 28108, 34795, 35135, 69590, 70270, 139180, 140540, 48900893, 97801786, 195603572, 244504465, 489008930, 978017860]

約数ペア:

[(1, 978017860), (2, 489008930), (4, 244504465), (5, 195603572), (10, 97801786), (20, 48900893), (6959, 140540), (7027, 139180), (13918, 70270), (14054, 69590), (27836, 35135), (28108, 34795)]