19655570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1$

素因数の和:515

約数の個数: 64

約数和(自身を含む): 42736896

約数和(自身を除く): 23081326

約数列:

[1, 2, 5, 10, 11, 17, 22, 23, 34, 46, 55, 85, 110, 115, 170, 187, 230, 253, 374, 391, 457, 506, 782, 914, 935, 1265, 1870, 1955, 2285, 2530, 3910, 4301, 4570, 5027, 7769, 8602, 10054, 10511, 15538, 21022, 21505, 25135, 38845, 43010, 50270, 52555, 77690, 85459, 105110, 115621, 170918, 178687, 231242, 357374, 427295, 578105, 854590, 893435, 1156210, 1786870, 1965557, 3931114, 9827785, 19655570]

約数ペア:

[(1, 19655570), (2, 9827785), (5, 3931114), (10, 1965557), (11, 1786870), (17, 1156210), (22, 893435), (23, 854590), (34, 578105), (46, 427295), (55, 357374), (85, 231242), (110, 178687), (115, 170918), (170, 115621), (187, 105110), (230, 85459), (253, 77690), (374, 52555), (391, 50270), (457, 43010), (506, 38845), (782, 25135), (914, 21505), (935, 21022), (1265, 15538), (1870, 10511), (1955, 10054), (2285, 8602), (2530, 7769), (3910, 5027), (4301, 4570)]