2018793605

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 2852152800

約数和(自身を除く): 833359195

約数列:

[1, 5, 17, 19, 23, 85, 95, 115, 139, 289, 323, 391, 437, 529, 695, 1445, 1615, 1955, 2185, 2363, 2641, 2645, 3197, 5491, 6647, 7429, 8993, 10051, 11815, 13205, 15985, 27455, 33235, 37145, 40171, 44897, 44965, 50255, 54349, 60743, 73531, 126293, 152881, 170867, 200855, 224485, 271745, 303715, 367655, 631465, 763249, 764405, 854335, 923933, 1032631, 1250027, 1397089, 2904739, 3816245, 4619665, 5163155, 6250135, 6985445, 14523695, 17554727, 21250459, 23750513, 87773635, 106252295, 118752565, 403758721, 2018793605]

約数ペア:

[(1, 2018793605), (5, 403758721), (17, 118752565), (19, 106252295), (23, 87773635), (85, 23750513), (95, 21250459), (115, 17554727), (139, 14523695), (289, 6985445), (323, 6250135), (391, 5163155), (437, 4619665), (529, 3816245), (695, 2904739), (1445, 1397089), (1615, 1250027), (1955, 1032631), (2185, 923933), (2363, 854335), (2641, 764405), (2645, 763249), (3197, 631465), (5491, 367655), (6647, 303715), (7429, 271745), (8993, 224485), (10051, 200855), (11815, 170867), (13205, 152881), (15985, 126293), (27455, 73531), (33235, 60743), (37145, 54349), (40171, 50255), (44897, 44965)]