19800380

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{3163}}^1$

素因数の和:3485

約数の個数: 24

約数和(自身を含む): 41726832

約数和(自身を除く): 21926452

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 3163, 6260, 6326, 12652, 15815, 31630, 63260, 990019, 1980038, 3960076, 4950095, 9900190, 19800380]

約数ペア:

[(1, 19800380), (2, 9900190), (4, 4950095), (5, 3960076), (10, 1980038), (20, 990019), (313, 63260), (626, 31630), (1252, 15815), (1565, 12652), (3130, 6326), (3163, 6260)]