209928528

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:154

約数の個数: 180

約数和(自身を含む): 638685684

約数和(自身を除く): 428757156

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 37, 41, 48, 62, 72, 74, 82, 93, 111, 123, 124, 144, 148, 164, 186, 222, 246, 248, 279, 296, 328, 333, 369, 372, 444, 492, 496, 558, 592, 656, 666, 738, 744, 888, 961, 984, 1116, 1147, 1271, 1332, 1476, 1488, 1517, 1776, 1922, 1968, 2232, 2294, 2542, 2664, 2883, 2952, 3034, 3441, 3813, 3844, 4464, 4551, 4588, 5084, 5328, 5766, 5904, 6068, 6882, 7626, 7688, 8649, 9102, 9176, 10168, 10323, 11439, 11532, 12136, 13653, 13764, 15252, 15376, 17298, 18204, 18352, 20336, 20646, 22878, 23064, 24272, 27306, 27528, 30504, 34596, 35557, 36408, 39401, 41292, 45756, 46128, 47027, 54612, 55056, 61008, 69192, 71114, 72816, 78802, 82584, 91512, 94054, 106671, 109224, 118203, 138384, 141081, 142228, 157604, 165168, 183024, 188108, 213342, 218448, 236406, 282162, 284456, 315208, 320013, 354609, 376216, 423243, 426684, 472812, 564324, 568912, 630416, 640026, 709218, 752432, 846486, 853368, 945624, 1128648, 1280052, 1418436, 1457837, 1692972, 1706736, 1891248, 2257296, 2560104, 2836872, 2915674, 3385944, 4373511, 5120208, 5673744, 5831348, 6771888, 8747022, 11662696, 13120533, 17494044, 23325392, 26241066, 34988088, 52482132, 69976176, 104964264, 209928528]

約数ペア:

[(1, 209928528), (2, 104964264), (3, 69976176), (4, 52482132), (6, 34988088), (8, 26241066), (9, 23325392), (12, 17494044), (16, 13120533), (18, 11662696), (24, 8747022), (31, 6771888), (36, 5831348), (37, 5673744), (41, 5120208), (48, 4373511), (62, 3385944), (72, 2915674), (74, 2836872), (82, 2560104), (93, 2257296), (111, 1891248), (123, 1706736), (124, 1692972), (144, 1457837), (148, 1418436), (164, 1280052), (186, 1128648), (222, 945624), (246, 853368), (248, 846486), (279, 752432), (296, 709218), (328, 640026), (333, 630416), (369, 568912), (372, 564324), (444, 472812), (492, 426684), (496, 423243), (558, 376216), (592, 354609), (656, 320013), (666, 315208), (738, 284456), (744, 282162), (888, 236406), (961, 218448), (984, 213342), (1116, 188108), (1147, 183024), (1271, 165168), (1332, 157604), (1476, 142228), (1488, 141081), (1517, 138384), (1776, 118203), (1922, 109224), (1968, 106671), (2232, 94054), (2294, 91512), (2542, 82584), (2664, 78802), (2883, 72816), (2952, 71114), (3034, 69192), (3441, 61008), (3813, 55056), (3844, 54612), (4464, 47027), (4551, 46128), (4588, 45756), (5084, 41292), (5328, 39401), (5766, 36408), (5904, 35557), (6068, 34596), (6882, 30504), (7626, 27528), (7688, 27306), (8649, 24272), (9102, 23064), (9176, 22878), (10168, 20646), (10323, 20336), (11439, 18352), (11532, 18204), (12136, 17298), (13653, 15376), (13764, 15252)]