68710720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:312

約数の個数: 112

約数和(自身を含む): 179222400

約数和(自身を除く): 110511680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 83, 104, 130, 160, 166, 199, 208, 260, 320, 332, 398, 415, 416, 520, 664, 796, 830, 832, 995, 1040, 1079, 1328, 1592, 1660, 1990, 2080, 2158, 2587, 2656, 3184, 3320, 3980, 4160, 4316, 5174, 5312, 5395, 6368, 6640, 7960, 8632, 10348, 10790, 12736, 12935, 13280, 15920, 16517, 17264, 20696, 21580, 25870, 26560, 31840, 33034, 34528, 41392, 43160, 51740, 63680, 66068, 69056, 82585, 82784, 86320, 103480, 132136, 165170, 165568, 172640, 206960, 214721, 264272, 330340, 345280, 413920, 429442, 528544, 660680, 827840, 858884, 1057088, 1073605, 1321360, 1717768, 2147210, 2642720, 3435536, 4294420, 5285440, 6871072, 8588840, 13742144, 17177680, 34355360, 68710720]

約数ペア:

[(1, 68710720), (2, 34355360), (4, 17177680), (5, 13742144), (8, 8588840), (10, 6871072), (13, 5285440), (16, 4294420), (20, 3435536), (26, 2642720), (32, 2147210), (40, 1717768), (52, 1321360), (64, 1073605), (65, 1057088), (80, 858884), (83, 827840), (104, 660680), (130, 528544), (160, 429442), (166, 413920), (199, 345280), (208, 330340), (260, 264272), (320, 214721), (332, 206960), (398, 172640), (415, 165568), (416, 165170), (520, 132136), (664, 103480), (796, 86320), (830, 82784), (832, 82585), (995, 69056), (1040, 66068), (1079, 63680), (1328, 51740), (1592, 43160), (1660, 41392), (1990, 34528), (2080, 33034), (2158, 31840), (2587, 26560), (2656, 25870), (3184, 21580), (3320, 20696), (3980, 17264), (4160, 16517), (4316, 15920), (5174, 13280), (5312, 12935), (5395, 12736), (6368, 10790), (6640, 10348), (7960, 8632)]