218231568

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{83}}^1$

素因数の和:178

約数の個数: 180

約数和(自身を含む): 672300720

約数和(自身を除く): 454069152

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 31, 36, 38, 48, 57, 62, 72, 76, 83, 93, 114, 124, 144, 152, 166, 171, 186, 228, 248, 249, 279, 304, 332, 342, 372, 456, 496, 498, 558, 589, 664, 684, 744, 747, 912, 961, 996, 1116, 1178, 1328, 1368, 1488, 1494, 1577, 1767, 1922, 1992, 2232, 2356, 2573, 2736, 2883, 2988, 3154, 3534, 3844, 3984, 4464, 4712, 4731, 5146, 5301, 5766, 5976, 6308, 7068, 7688, 7719, 8649, 9424, 9462, 10292, 10602, 11532, 11952, 12616, 14136, 14193, 15376, 15438, 17298, 18259, 18924, 20584, 21204, 23064, 23157, 25232, 28272, 28386, 30876, 34596, 36518, 37848, 41168, 42408, 46128, 46314, 48887, 54777, 56772, 61752, 69192, 73036, 75696, 79763, 84816, 92628, 97774, 109554, 113544, 123504, 138384, 146072, 146661, 159526, 164331, 185256, 195548, 219108, 227088, 239289, 292144, 293322, 319052, 328662, 370512, 391096, 438216, 439983, 478578, 586644, 638104, 657324, 717867, 782192, 876432, 879966, 957156, 1173288, 1276208, 1314648, 1435734, 1515497, 1759932, 1914312, 2346576, 2629296, 2871468, 3030994, 3519864, 3828624, 4546491, 5742936, 6061988, 7039728, 9092982, 11485872, 12123976, 13639473, 18185964, 24247952, 27278946, 36371928, 54557892, 72743856, 109115784, 218231568]

約数ペア:

[(1, 218231568), (2, 109115784), (3, 72743856), (4, 54557892), (6, 36371928), (8, 27278946), (9, 24247952), (12, 18185964), (16, 13639473), (18, 12123976), (19, 11485872), (24, 9092982), (31, 7039728), (36, 6061988), (38, 5742936), (48, 4546491), (57, 3828624), (62, 3519864), (72, 3030994), (76, 2871468), (83, 2629296), (93, 2346576), (114, 1914312), (124, 1759932), (144, 1515497), (152, 1435734), (166, 1314648), (171, 1276208), (186, 1173288), (228, 957156), (248, 879966), (249, 876432), (279, 782192), (304, 717867), (332, 657324), (342, 638104), (372, 586644), (456, 478578), (496, 439983), (498, 438216), (558, 391096), (589, 370512), (664, 328662), (684, 319052), (744, 293322), (747, 292144), (912, 239289), (961, 227088), (996, 219108), (1116, 195548), (1178, 185256), (1328, 164331), (1368, 159526), (1488, 146661), (1494, 146072), (1577, 138384), (1767, 123504), (1922, 113544), (1992, 109554), (2232, 97774), (2356, 92628), (2573, 84816), (2736, 79763), (2883, 75696), (2988, 73036), (3154, 69192), (3534, 61752), (3844, 56772), (3984, 54777), (4464, 48887), (4712, 46314), (4731, 46128), (5146, 42408), (5301, 41168), (5766, 37848), (5976, 36518), (6308, 34596), (7068, 30876), (7688, 28386), (7719, 28272), (8649, 25232), (9424, 23157), (9462, 23064), (10292, 21204), (10602, 20584), (11532, 18924), (11952, 18259), (12616, 17298), (14136, 15438), (14193, 15376)]