144497020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1\times {\mathrm{353}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 308897568

約数和(自身を除く): 164400548

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 211, 353, 388, 422, 485, 706, 844, 970, 1055, 1412, 1765, 1940, 2110, 3530, 4220, 7060, 20467, 34241, 40934, 68482, 74483, 81868, 102335, 136964, 148966, 171205, 204670, 297932, 342410, 372415, 409340, 684820, 744830, 1489660, 7224851, 14449702, 28899404, 36124255, 72248510, 144497020]

約数ペア:

[(1, 144497020), (2, 72248510), (4, 36124255), (5, 28899404), (10, 14449702), (20, 7224851), (97, 1489660), (194, 744830), (211, 684820), (353, 409340), (388, 372415), (422, 342410), (485, 297932), (706, 204670), (844, 171205), (970, 148966), (1055, 136964), (1412, 102335), (1765, 81868), (1940, 74483), (2110, 68482), (3530, 40934), (4220, 34241), (7060, 20467)]