66881815

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 115831296

約数和(自身を除く): 48949481

約数列:

[1, 5, 7, 11, 13, 23, 35, 49, 55, 65, 77, 83, 91, 115, 143, 161, 245, 253, 299, 385, 415, 455, 539, 581, 637, 715, 805, 913, 1001, 1079, 1127, 1265, 1495, 1771, 1909, 2093, 2695, 2905, 3185, 3289, 4067, 4565, 5005, 5395, 5635, 6391, 7007, 7553, 8855, 9545, 10465, 11869, 12397, 13363, 14651, 16445, 20335, 20999, 23023, 24817, 31955, 35035, 37765, 44737, 52871, 59345, 61985, 66815, 73255, 83083, 93541, 104995, 115115, 124085, 146993, 161161, 173719, 223685, 264355, 272987, 415415, 467705, 581581, 734965, 805805, 868595, 1028951, 1216033, 1364935, 1910909, 2907905, 5144755, 6080165, 9554545, 13376363, 66881815]

約数ペア:

[(1, 66881815), (5, 13376363), (7, 9554545), (11, 6080165), (13, 5144755), (23, 2907905), (35, 1910909), (49, 1364935), (55, 1216033), (65, 1028951), (77, 868595), (83, 805805), (91, 734965), (115, 581581), (143, 467705), (161, 415415), (245, 272987), (253, 264355), (299, 223685), (385, 173719), (415, 161161), (455, 146993), (539, 124085), (581, 115115), (637, 104995), (715, 93541), (805, 83083), (913, 73255), (1001, 66815), (1079, 61985), (1127, 59345), (1265, 52871), (1495, 44737), (1771, 37765), (1909, 35035), (2093, 31955), (2695, 24817), (2905, 23023), (3185, 20999), (3289, 20335), (4067, 16445), (4565, 14651), (5005, 13363), (5395, 12397), (5635, 11869), (6391, 10465), (7007, 9545), (7553, 8855)]