51172840

素因数分解:

$2^3\times 5^1\times {\mathrm{1279321}}^1$

素因数の和:1279332

約数の個数: 16

約数和(自身を含む): 115138980

約数和(自身を除く): 63966140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1279321, 2558642, 5117284, 6396605, 10234568, 12793210, 25586420, 51172840]

約数ペア:

[(1, 51172840), (2, 25586420), (4, 12793210), (5, 10234568), (8, 6396605), (10, 5117284), (20, 2558642), (40, 1279321)]