16401220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{74551}}^1$

素因数の和:74571

約数の個数: 24

約数和(自身を含む): 37574208

約数和(自身を除く): 21172988

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 74551, 149102, 298204, 372755, 745510, 820061, 1491020, 1640122, 3280244, 4100305, 8200610, 16401220]

約数ペア:

[(1, 16401220), (2, 8200610), (4, 4100305), (5, 3280244), (10, 1640122), (11, 1491020), (20, 820061), (22, 745510), (44, 372755), (55, 298204), (110, 149102), (220, 74551)]