19664810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^2$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 41070240

約数和(自身を除く): 21405430

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 97, 110, 190, 194, 209, 418, 485, 970, 1045, 1067, 1843, 2090, 2134, 3686, 5335, 9215, 9409, 10670, 18430, 18818, 20273, 40546, 47045, 94090, 101365, 103499, 178771, 202730, 206998, 357542, 517495, 893855, 1034990, 1787710, 1966481, 3932962, 9832405, 19664810]

約数ペア:

[(1, 19664810), (2, 9832405), (5, 3932962), (10, 1966481), (11, 1787710), (19, 1034990), (22, 893855), (38, 517495), (55, 357542), (95, 206998), (97, 202730), (110, 178771), (190, 103499), (194, 101365), (209, 94090), (418, 47045), (485, 40546), (970, 20273), (1045, 18818), (1067, 18430), (1843, 10670), (2090, 9409), (2134, 9215), (3686, 5335)]