208565775

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{4957}}^1$

素因数の和:5001

約数の個数: 72

約数和(自身を含む): 431583984

約数和(自身を除く): 223018209

約数列:

[1, 3, 5, 9, 11, 15, 17, 25, 33, 45, 51, 55, 75, 85, 99, 153, 165, 187, 225, 255, 275, 425, 495, 561, 765, 825, 935, 1275, 1683, 2475, 2805, 3825, 4675, 4957, 8415, 14025, 14871, 24785, 42075, 44613, 54527, 74355, 84269, 123925, 163581, 223065, 252807, 272635, 371775, 421345, 490743, 758421, 817905, 926959, 1115325, 1264035, 1363175, 2106725, 2453715, 2780877, 3792105, 4089525, 4634795, 6320175, 8342631, 12268575, 13904385, 18960525, 23173975, 41713155, 69521925, 208565775]

約数ペア:

[(1, 208565775), (3, 69521925), (5, 41713155), (9, 23173975), (11, 18960525), (15, 13904385), (17, 12268575), (25, 8342631), (33, 6320175), (45, 4634795), (51, 4089525), (55, 3792105), (75, 2780877), (85, 2453715), (99, 2106725), (153, 1363175), (165, 1264035), (187, 1115325), (225, 926959), (255, 817905), (275, 758421), (425, 490743), (495, 421345), (561, 371775), (765, 272635), (825, 252807), (935, 223065), (1275, 163581), (1683, 123925), (2475, 84269), (2805, 74355), (3825, 54527), (4675, 44613), (4957, 42075), (8415, 24785), (14025, 14871)]