131640816

素因数分解:

$2^4\times 3^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:227

約数の個数: 120

約数和(自身を含む): 367369344

約数和(自身を除く): 235728528

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 19, 24, 38, 48, 57, 71, 76, 107, 114, 142, 152, 213, 214, 228, 284, 304, 321, 361, 426, 428, 456, 568, 642, 722, 852, 856, 912, 1083, 1136, 1284, 1349, 1444, 1704, 1712, 2033, 2166, 2568, 2698, 2888, 3408, 4047, 4066, 4332, 5136, 5396, 5776, 6099, 7597, 8094, 8132, 8664, 10792, 12198, 15194, 16188, 16264, 17328, 21584, 22791, 24396, 25631, 30388, 32376, 32528, 38627, 45582, 48792, 51262, 60776, 64752, 76893, 77254, 91164, 97584, 102524, 115881, 121552, 144343, 153786, 154508, 182328, 205048, 231762, 288686, 307572, 309016, 364656, 410096, 433029, 463524, 577372, 615144, 618032, 866058, 927048, 1154744, 1230288, 1732116, 1854096, 2309488, 2742517, 3464232, 5485034, 6928464, 8227551, 10970068, 16455102, 21940136, 32910204, 43880272, 65820408, 131640816]

約数ペア:

[(1, 131640816), (2, 65820408), (3, 43880272), (4, 32910204), (6, 21940136), (8, 16455102), (12, 10970068), (16, 8227551), (19, 6928464), (24, 5485034), (38, 3464232), (48, 2742517), (57, 2309488), (71, 1854096), (76, 1732116), (107, 1230288), (114, 1154744), (142, 927048), (152, 866058), (213, 618032), (214, 615144), (228, 577372), (284, 463524), (304, 433029), (321, 410096), (361, 364656), (426, 309016), (428, 307572), (456, 288686), (568, 231762), (642, 205048), (722, 182328), (852, 154508), (856, 153786), (912, 144343), (1083, 121552), (1136, 115881), (1284, 102524), (1349, 97584), (1444, 91164), (1704, 77254), (1712, 76893), (2033, 64752), (2166, 60776), (2568, 51262), (2698, 48792), (2888, 45582), (3408, 38627), (4047, 32528), (4066, 32376), (4332, 30388), (5136, 25631), (5396, 24396), (5776, 22791), (6099, 21584), (7597, 17328), (8094, 16264), (8132, 16188), (8664, 15194), (10792, 12198)]