16219760

素因数分解:

$2^4\times 5^1\times {\mathrm{202747}}^1$

素因数の和:202760

約数の個数: 20

約数和(自身を含む): 37711128

約数和(自身を除く): 21491368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 202747, 405494, 810988, 1013735, 1621976, 2027470, 3243952, 4054940, 8109880, 16219760]

約数ペア:

[(1, 16219760), (2, 8109880), (4, 4054940), (5, 3243952), (8, 2027470), (10, 1621976), (16, 1013735), (20, 810988), (40, 405494), (80, 202747)]