18218475

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{433}}^1$

素因数の和:477

約数の個数: 72

約数和(自身を含む): 37778832

約数和(自身を除く): 19560357

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, 433, 495, 561, 765, 825, 935, 1275, 1299, 1683, 2165, 2475, 2805, 3825, 3897, 4675, 4763, 6495, 7361, 8415, 10825, 14025, 14289, 19485, 22083, 23815, 32475, 36805, 42075, 42867, 66249, 71445, 80971, 97425, 110415, 119075, 184025, 214335, 242913, 331245, 357225, 404855, 552075, 728739, 1071675, 1214565, 1656225, 2024275, 3643695, 6072825, 18218475]

約数ペア:

[(1, 18218475), (3, 6072825), (5, 3643695), (9, 2024275), (11, 1656225), (15, 1214565), (17, 1071675), (25, 728739), (33, 552075), (45, 404855), (51, 357225), (55, 331245), (75, 242913), (85, 214335), (99, 184025), (153, 119075), (165, 110415), (187, 97425), (225, 80971), (255, 71445), (275, 66249), (425, 42867), (433, 42075), (495, 36805), (561, 32475), (765, 23815), (825, 22083), (935, 19485), (1275, 14289), (1299, 14025), (1683, 10825), (2165, 8415), (2475, 7361), (2805, 6495), (3825, 4763), (3897, 4675)]