409340

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 872592

約数和(自身を除く): 463252

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 211, 388, 422, 485, 844, 970, 1055, 1940, 2110, 4220, 20467, 40934, 81868, 102335, 204670, 409340]

約数ペア:

[(1, 409340), (2, 204670), (4, 102335), (5, 81868), (10, 40934), (20, 20467), (97, 4220), (194, 2110), (211, 1940), (388, 1055), (422, 970), (485, 844)]