261627444

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:610

約数の個数: 144

約数和(自身を含む): 758131920

約数和(自身を除く): 496504476

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 29, 36, 37, 39, 52, 58, 74, 78, 87, 111, 116, 117, 148, 156, 174, 222, 234, 261, 333, 348, 377, 444, 468, 481, 521, 522, 666, 754, 962, 1042, 1044, 1073, 1131, 1332, 1443, 1508, 1563, 1924, 2084, 2146, 2262, 2886, 3126, 3219, 3393, 4292, 4329, 4524, 4689, 5772, 6252, 6438, 6773, 6786, 8658, 9378, 9657, 12876, 13546, 13572, 13949, 15109, 17316, 18756, 19277, 19314, 20319, 27092, 27898, 30218, 38554, 38628, 40638, 41847, 45327, 55796, 57831, 60436, 60957, 77108, 81276, 83694, 90654, 115662, 121914, 125541, 135981, 167388, 173493, 181308, 196417, 231324, 243828, 250601, 251082, 271962, 346986, 392834, 501202, 502164, 543924, 559033, 589251, 693972, 751803, 785668, 1002404, 1118066, 1178502, 1503606, 1677099, 1767753, 2236132, 2255409, 2357004, 3007212, 3354198, 3535506, 4510818, 5031297, 6708396, 7071012, 7267429, 9021636, 10062594, 14534858, 20125188, 21802287, 29069716, 43604574, 65406861, 87209148, 130813722, 261627444]

約数ペア:

[(1, 261627444), (2, 130813722), (3, 87209148), (4, 65406861), (6, 43604574), (9, 29069716), (12, 21802287), (13, 20125188), (18, 14534858), (26, 10062594), (29, 9021636), (36, 7267429), (37, 7071012), (39, 6708396), (52, 5031297), (58, 4510818), (74, 3535506), (78, 3354198), (87, 3007212), (111, 2357004), (116, 2255409), (117, 2236132), (148, 1767753), (156, 1677099), (174, 1503606), (222, 1178502), (234, 1118066), (261, 1002404), (333, 785668), (348, 751803), (377, 693972), (444, 589251), (468, 559033), (481, 543924), (521, 502164), (522, 501202), (666, 392834), (754, 346986), (962, 271962), (1042, 251082), (1044, 250601), (1073, 243828), (1131, 231324), (1332, 196417), (1443, 181308), (1508, 173493), (1563, 167388), (1924, 135981), (2084, 125541), (2146, 121914), (2262, 115662), (2886, 90654), (3126, 83694), (3219, 81276), (3393, 77108), (4292, 60957), (4329, 60436), (4524, 57831), (4689, 55796), (5772, 45327), (6252, 41847), (6438, 40638), (6773, 38628), (6786, 38554), (8658, 30218), (9378, 27898), (9657, 27092), (12876, 20319), (13546, 19314), (13572, 19277), (13949, 18756), (15109, 17316)]