261736552

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{107}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 656722080

約数和(自身を除く): 394985528

約数列:

[1, 2, 4, 7, 8, 11, 14, 19, 22, 28, 38, 44, 56, 76, 77, 88, 107, 121, 133, 152, 154, 209, 214, 242, 266, 308, 361, 418, 428, 484, 532, 616, 722, 749, 836, 847, 856, 968, 1064, 1177, 1444, 1463, 1498, 1672, 1694, 2033, 2299, 2354, 2527, 2888, 2926, 2996, 3388, 3971, 4066, 4598, 4708, 5054, 5852, 5992, 6776, 7942, 8132, 8239, 9196, 9416, 10108, 11704, 12947, 14231, 15884, 16093, 16264, 16478, 18392, 20216, 22363, 25894, 27797, 28462, 31768, 32186, 32956, 38627, 43681, 44726, 51788, 55594, 56924, 64372, 65912, 77254, 87362, 89452, 90629, 103576, 111188, 113848, 128744, 154508, 156541, 174724, 178904, 181258, 222376, 245993, 270389, 305767, 309016, 313082, 349448, 362516, 424897, 491986, 540778, 611534, 626164, 725032, 849794, 983972, 1081556, 1223068, 1252328, 1699588, 1721951, 1967944, 2163112, 2446136, 2974279, 3399176, 3443902, 4673867, 5948558, 6887804, 9347734, 11897116, 13775608, 18695468, 23794232, 32717069, 37390936, 65434138, 130868276, 261736552]

約数ペア:

[(1, 261736552), (2, 130868276), (4, 65434138), (7, 37390936), (8, 32717069), (11, 23794232), (14, 18695468), (19, 13775608), (22, 11897116), (28, 9347734), (38, 6887804), (44, 5948558), (56, 4673867), (76, 3443902), (77, 3399176), (88, 2974279), (107, 2446136), (121, 2163112), (133, 1967944), (152, 1721951), (154, 1699588), (209, 1252328), (214, 1223068), (242, 1081556), (266, 983972), (308, 849794), (361, 725032), (418, 626164), (428, 611534), (484, 540778), (532, 491986), (616, 424897), (722, 362516), (749, 349448), (836, 313082), (847, 309016), (856, 305767), (968, 270389), (1064, 245993), (1177, 222376), (1444, 181258), (1463, 178904), (1498, 174724), (1672, 156541), (1694, 154508), (2033, 128744), (2299, 113848), (2354, 111188), (2527, 103576), (2888, 90629), (2926, 89452), (2996, 87362), (3388, 77254), (3971, 65912), (4066, 64372), (4598, 56924), (4708, 55594), (5054, 51788), (5852, 44726), (5992, 43681), (6776, 38627), (7942, 32956), (8132, 32186), (8239, 31768), (9196, 28462), (9416, 27797), (10108, 25894), (11704, 22363), (12947, 20216), (14231, 18392), (15884, 16478), (16093, 16264)]