261961776

素因数分解:

$2^4\times 3^6\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:670

約数の個数: 140

約数和(自身を含む): 782832832

約数和(自身を除く): 520871056

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 37, 48, 54, 72, 74, 81, 108, 111, 144, 148, 162, 216, 222, 243, 296, 324, 333, 432, 444, 486, 592, 607, 648, 666, 729, 888, 972, 999, 1214, 1296, 1332, 1458, 1776, 1821, 1944, 1998, 2428, 2664, 2916, 2997, 3642, 3888, 3996, 4856, 5328, 5463, 5832, 5994, 7284, 7992, 8991, 9712, 10926, 11664, 11988, 14568, 15984, 16389, 17982, 21852, 22459, 23976, 26973, 29136, 32778, 35964, 43704, 44918, 47952, 49167, 53946, 65556, 67377, 71928, 87408, 89836, 98334, 107892, 131112, 134754, 143856, 147501, 179672, 196668, 202131, 215784, 262224, 269508, 295002, 359344, 393336, 404262, 431568, 442503, 539016, 590004, 606393, 786672, 808524, 885006, 1078032, 1180008, 1212786, 1617048, 1770012, 1819179, 2360016, 2425572, 3234096, 3540024, 3638358, 4851144, 5457537, 7080048, 7276716, 9702288, 10915074, 14553432, 16372611, 21830148, 29106864, 32745222, 43660296, 65490444, 87320592, 130980888, 261961776]

約数ペア:

[(1, 261961776), (2, 130980888), (3, 87320592), (4, 65490444), (6, 43660296), (8, 32745222), (9, 29106864), (12, 21830148), (16, 16372611), (18, 14553432), (24, 10915074), (27, 9702288), (36, 7276716), (37, 7080048), (48, 5457537), (54, 4851144), (72, 3638358), (74, 3540024), (81, 3234096), (108, 2425572), (111, 2360016), (144, 1819179), (148, 1770012), (162, 1617048), (216, 1212786), (222, 1180008), (243, 1078032), (296, 885006), (324, 808524), (333, 786672), (432, 606393), (444, 590004), (486, 539016), (592, 442503), (607, 431568), (648, 404262), (666, 393336), (729, 359344), (888, 295002), (972, 269508), (999, 262224), (1214, 215784), (1296, 202131), (1332, 196668), (1458, 179672), (1776, 147501), (1821, 143856), (1944, 134754), (1998, 131112), (2428, 107892), (2664, 98334), (2916, 89836), (2997, 87408), (3642, 71928), (3888, 67377), (3996, 65556), (4856, 53946), (5328, 49167), (5463, 47952), (5832, 44918), (5994, 43704), (7284, 35964), (7992, 32778), (8991, 29136), (9712, 26973), (10926, 23976), (11664, 22459), (11988, 21852), (14568, 17982), (15984, 16389)]