8172380

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1019}}^1$

素因数の和:1429

約数の個数: 24

約数和(自身を含む): 17221680

約数和(自身を除く): 9049300

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1019, 1604, 2005, 2038, 4010, 4076, 5095, 8020, 10190, 20380, 408619, 817238, 1634476, 2043095, 4086190, 8172380]

約数ペア:

[(1, 8172380), (2, 4086190), (4, 2043095), (5, 1634476), (10, 817238), (20, 408619), (401, 20380), (802, 10190), (1019, 8020), (1604, 5095), (2005, 4076), (2038, 4010)]