256838472

素因数分解:

$2^3\times 3^3\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:385

約数の個数: 192

約数和(自身を含む): 812044800

約数和(自身を除く): 555206328

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 31, 33, 36, 44, 54, 62, 66, 72, 88, 93, 99, 108, 121, 124, 132, 186, 198, 216, 242, 248, 264, 279, 297, 317, 341, 363, 372, 396, 484, 558, 594, 634, 682, 726, 744, 792, 837, 951, 968, 1023, 1089, 1116, 1188, 1268, 1364, 1452, 1674, 1902, 2046, 2178, 2232, 2376, 2536, 2728, 2853, 2904, 3069, 3267, 3348, 3487, 3751, 3804, 4092, 4356, 5706, 6138, 6534, 6696, 6974, 7502, 7608, 8184, 8559, 8712, 9207, 9827, 10461, 11253, 11412, 12276, 13068, 13948, 15004, 17118, 18414, 19654, 20922, 22506, 22824, 24552, 26136, 27896, 29481, 30008, 31383, 33759, 34236, 36828, 38357, 39308, 41844, 45012, 58962, 62766, 67518, 68472, 73656, 76714, 78616, 83688, 88443, 90024, 94149, 101277, 108097, 115071, 117924, 125532, 135036, 153428, 176886, 188298, 202554, 216194, 230142, 235848, 251064, 265329, 270072, 306856, 324291, 345213, 353772, 376596, 405108, 432388, 460284, 530658, 648582, 690426, 707544, 753192, 810216, 864776, 920568, 972873, 1035639, 1061316, 1189067, 1297164, 1380852, 1945746, 2071278, 2122632, 2378134, 2594328, 2761704, 2918619, 3567201, 3891492, 4142556, 4756268, 5837238, 7134402, 7782984, 8285112, 9512536, 10701603, 11674476, 14268804, 21403206, 23348952, 28537608, 32104809, 42806412, 64209618, 85612824, 128419236, 256838472]

約数ペア:

[(1, 256838472), (2, 128419236), (3, 85612824), (4, 64209618), (6, 42806412), (8, 32104809), (9, 28537608), (11, 23348952), (12, 21403206), (18, 14268804), (22, 11674476), (24, 10701603), (27, 9512536), (31, 8285112), (33, 7782984), (36, 7134402), (44, 5837238), (54, 4756268), (62, 4142556), (66, 3891492), (72, 3567201), (88, 2918619), (93, 2761704), (99, 2594328), (108, 2378134), (121, 2122632), (124, 2071278), (132, 1945746), (186, 1380852), (198, 1297164), (216, 1189067), (242, 1061316), (248, 1035639), (264, 972873), (279, 920568), (297, 864776), (317, 810216), (341, 753192), (363, 707544), (372, 690426), (396, 648582), (484, 530658), (558, 460284), (594, 432388), (634, 405108), (682, 376596), (726, 353772), (744, 345213), (792, 324291), (837, 306856), (951, 270072), (968, 265329), (1023, 251064), (1089, 235848), (1116, 230142), (1188, 216194), (1268, 202554), (1364, 188298), (1452, 176886), (1674, 153428), (1902, 135036), (2046, 125532), (2178, 117924), (2232, 115071), (2376, 108097), (2536, 101277), (2728, 94149), (2853, 90024), (2904, 88443), (3069, 83688), (3267, 78616), (3348, 76714), (3487, 73656), (3751, 68472), (3804, 67518), (4092, 62766), (4356, 58962), (5706, 45012), (6138, 41844), (6534, 39308), (6696, 38357), (6974, 36828), (7502, 34236), (7608, 33759), (8184, 31383), (8559, 30008), (8712, 29481), (9207, 27896), (9827, 26136), (10461, 24552), (11253, 22824), (11412, 22506), (12276, 20922), (13068, 19654), (13948, 18414), (15004, 17118)]