81332475

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 162846720

約数和(自身を除く): 81514245

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 37, 53, 75, 79, 105, 111, 159, 175, 185, 237, 259, 265, 371, 395, 525, 553, 555, 777, 795, 925, 1113, 1185, 1295, 1325, 1659, 1855, 1961, 1975, 2765, 2775, 2923, 3885, 3975, 4187, 5565, 5883, 5925, 6475, 8295, 8769, 9275, 9805, 12561, 13727, 13825, 14615, 19425, 20461, 20935, 27825, 29309, 29415, 41181, 41475, 43845, 49025, 61383, 62805, 68635, 73075, 87927, 102305, 104675, 146545, 147075, 154919, 205905, 219225, 306915, 314025, 343175, 439635, 464757, 511525, 732725, 774595, 1029525, 1084433, 1534575, 2198175, 2323785, 3253299, 3872975, 5422165, 11618925, 16266495, 27110825, 81332475]

約数ペア:

[(1, 81332475), (3, 27110825), (5, 16266495), (7, 11618925), (15, 5422165), (21, 3872975), (25, 3253299), (35, 2323785), (37, 2198175), (53, 1534575), (75, 1084433), (79, 1029525), (105, 774595), (111, 732725), (159, 511525), (175, 464757), (185, 439635), (237, 343175), (259, 314025), (265, 306915), (371, 219225), (395, 205905), (525, 154919), (553, 147075), (555, 146545), (777, 104675), (795, 102305), (925, 87927), (1113, 73075), (1185, 68635), (1295, 62805), (1325, 61383), (1659, 49025), (1855, 43845), (1961, 41475), (1975, 41181), (2765, 29415), (2775, 29309), (2923, 27825), (3885, 20935), (3975, 20461), (4187, 19425), (5565, 14615), (5883, 13825), (5925, 13727), (6475, 12561), (8295, 9805), (8769, 9275)]