199888975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:98

約数の個数: 108

約数和(自身を含む): 325947888

約数和(自身を除く): 126058913

約数列:

[1, 5, 11, 13, 17, 23, 25, 55, 65, 85, 115, 121, 143, 169, 187, 221, 253, 275, 299, 325, 391, 425, 575, 605, 715, 845, 935, 1105, 1265, 1495, 1573, 1859, 1955, 2057, 2431, 2783, 2873, 3025, 3289, 3575, 3887, 4225, 4301, 4675, 5083, 5525, 6325, 7475, 7865, 9295, 9775, 10285, 12155, 13915, 14365, 16445, 19435, 20449, 21505, 25415, 26741, 31603, 36179, 39325, 42757, 46475, 47311, 51425, 55913, 60775, 66079, 69575, 71825, 82225, 97175, 102245, 107525, 127075, 133705, 158015, 180895, 213785, 236555, 279565, 330395, 347633, 470327, 511225, 615043, 668525, 726869, 790075, 904475, 1068925, 1182775, 1397825, 1651975, 1738165, 2351635, 3075215, 3634345, 7995559, 8690825, 11758175, 15376075, 18171725, 39977795, 199888975]

約数ペア:

[(1, 199888975), (5, 39977795), (11, 18171725), (13, 15376075), (17, 11758175), (23, 8690825), (25, 7995559), (55, 3634345), (65, 3075215), (85, 2351635), (115, 1738165), (121, 1651975), (143, 1397825), (169, 1182775), (187, 1068925), (221, 904475), (253, 790075), (275, 726869), (299, 668525), (325, 615043), (391, 511225), (425, 470327), (575, 347633), (605, 330395), (715, 279565), (845, 236555), (935, 213785), (1105, 180895), (1265, 158015), (1495, 133705), (1573, 127075), (1859, 107525), (1955, 102245), (2057, 97175), (2431, 82225), (2783, 71825), (2873, 69575), (3025, 66079), (3289, 60775), (3575, 55913), (3887, 51425), (4225, 47311), (4301, 46475), (4675, 42757), (5083, 39325), (5525, 36179), (6325, 31603), (7475, 26741), (7865, 25415), (9295, 21505), (9775, 20449), (10285, 19435), (12155, 16445), (13915, 14365)]