28946740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{347}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 63024192

約数和(自身を除く): 34077452

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 97, 172, 194, 215, 347, 388, 430, 485, 694, 860, 970, 1388, 1735, 1940, 3470, 4171, 6940, 8342, 14921, 16684, 20855, 29842, 33659, 41710, 59684, 67318, 74605, 83420, 134636, 149210, 168295, 298420, 336590, 673180, 1447337, 2894674, 5789348, 7236685, 14473370, 28946740]

約数ペア:

[(1, 28946740), (2, 14473370), (4, 7236685), (5, 5789348), (10, 2894674), (20, 1447337), (43, 673180), (86, 336590), (97, 298420), (172, 168295), (194, 149210), (215, 134636), (347, 83420), (388, 74605), (430, 67318), (485, 59684), (694, 41710), (860, 33659), (970, 29842), (1388, 20855), (1735, 16684), (1940, 14921), (3470, 8342), (4171, 6940)]