81756468

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:214

約数の個数: 144

約数和(自身を含む): 235872000

約数和(自身を除く): 154115532

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 34, 36, 38, 51, 57, 68, 76, 79, 89, 102, 114, 153, 158, 171, 178, 204, 228, 237, 267, 306, 316, 323, 342, 356, 474, 534, 612, 646, 684, 711, 801, 948, 969, 1068, 1292, 1343, 1422, 1501, 1513, 1602, 1691, 1938, 2686, 2844, 2907, 3002, 3026, 3204, 3382, 3876, 4029, 4503, 4539, 5073, 5372, 5814, 6004, 6052, 6764, 7031, 8058, 9006, 9078, 10146, 11628, 12087, 13509, 13617, 14062, 15219, 16116, 18012, 18156, 20292, 21093, 24174, 25517, 27018, 27234, 28124, 28747, 30438, 42186, 48348, 51034, 54036, 54468, 57494, 60876, 63279, 76551, 84372, 86241, 102068, 114988, 119527, 126558, 133589, 153102, 172482, 229653, 239054, 253116, 258723, 267178, 306204, 344964, 358581, 400767, 459306, 478108, 517446, 534356, 717162, 801534, 918612, 1034892, 1075743, 1202301, 1434324, 1603068, 2151486, 2271013, 2404602, 4302972, 4542026, 4809204, 6813039, 9084052, 13626078, 20439117, 27252156, 40878234, 81756468]

約数ペア:

[(1, 81756468), (2, 40878234), (3, 27252156), (4, 20439117), (6, 13626078), (9, 9084052), (12, 6813039), (17, 4809204), (18, 4542026), (19, 4302972), (34, 2404602), (36, 2271013), (38, 2151486), (51, 1603068), (57, 1434324), (68, 1202301), (76, 1075743), (79, 1034892), (89, 918612), (102, 801534), (114, 717162), (153, 534356), (158, 517446), (171, 478108), (178, 459306), (204, 400767), (228, 358581), (237, 344964), (267, 306204), (306, 267178), (316, 258723), (323, 253116), (342, 239054), (356, 229653), (474, 172482), (534, 153102), (612, 133589), (646, 126558), (684, 119527), (711, 114988), (801, 102068), (948, 86241), (969, 84372), (1068, 76551), (1292, 63279), (1343, 60876), (1422, 57494), (1501, 54468), (1513, 54036), (1602, 51034), (1691, 48348), (1938, 42186), (2686, 30438), (2844, 28747), (2907, 28124), (3002, 27234), (3026, 27018), (3204, 25517), (3382, 24174), (3876, 21093), (4029, 20292), (4503, 18156), (4539, 18012), (5073, 16116), (5372, 15219), (5814, 14062), (6004, 13617), (6052, 13509), (6764, 12087), (7031, 11628), (8058, 10146), (9006, 9078)]