39705980

素因数分解:

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

素因数の和:414

約数の個数: 36

約数和(自身を含む): 84650328

約数和(自身を除く): 44944348

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 211, 388, 422, 485, 844, 970, 1055, 1940, 2110, 4220, 9409, 18818, 20467, 37636, 40934, 47045, 81868, 94090, 102335, 188180, 204670, 409340, 1985299, 3970598, 7941196, 9926495, 19852990, 39705980]

約数ペア:

[(1, 39705980), (2, 19852990), (4, 9926495), (5, 7941196), (10, 3970598), (20, 1985299), (97, 409340), (194, 204670), (211, 188180), (388, 102335), (422, 94090), (485, 81868), (844, 47045), (970, 40934), (1055, 37636), (1940, 20467), (2110, 18818), (4220, 9409)]