217078368

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{181}}^1$

素因数の和:269

約数の個数: 144

約数和(自身を含む): 637601328

約数和(自身を除く): 420522960

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 32, 39, 48, 52, 62, 78, 93, 96, 104, 124, 156, 181, 186, 208, 248, 312, 362, 372, 403, 416, 496, 543, 624, 724, 744, 806, 961, 992, 1086, 1209, 1248, 1448, 1488, 1612, 1922, 2172, 2353, 2418, 2883, 2896, 2976, 3224, 3844, 4344, 4706, 4836, 5611, 5766, 5792, 6448, 7059, 7688, 8688, 9412, 9672, 11222, 11532, 12493, 12896, 14118, 15376, 16833, 17376, 18824, 19344, 22444, 23064, 24986, 28236, 30752, 33666, 37479, 37648, 38688, 44888, 46128, 49972, 56472, 67332, 72943, 74958, 75296, 89776, 92256, 99944, 112944, 134664, 145886, 149916, 173941, 179552, 199888, 218829, 225888, 269328, 291772, 299832, 347882, 399776, 437658, 521823, 538656, 583544, 599664, 695764, 875316, 1043646, 1167088, 1199328, 1391528, 1750632, 2087292, 2261233, 2334176, 2783056, 3501264, 4174584, 4522466, 5566112, 6783699, 7002528, 8349168, 9044932, 13567398, 16698336, 18089864, 27134796, 36179728, 54269592, 72359456, 108539184, 217078368]

約数ペア:

[(1, 217078368), (2, 108539184), (3, 72359456), (4, 54269592), (6, 36179728), (8, 27134796), (12, 18089864), (13, 16698336), (16, 13567398), (24, 9044932), (26, 8349168), (31, 7002528), (32, 6783699), (39, 5566112), (48, 4522466), (52, 4174584), (62, 3501264), (78, 2783056), (93, 2334176), (96, 2261233), (104, 2087292), (124, 1750632), (156, 1391528), (181, 1199328), (186, 1167088), (208, 1043646), (248, 875316), (312, 695764), (362, 599664), (372, 583544), (403, 538656), (416, 521823), (496, 437658), (543, 399776), (624, 347882), (724, 299832), (744, 291772), (806, 269328), (961, 225888), (992, 218829), (1086, 199888), (1209, 179552), (1248, 173941), (1448, 149916), (1488, 145886), (1612, 134664), (1922, 112944), (2172, 99944), (2353, 92256), (2418, 89776), (2883, 75296), (2896, 74958), (2976, 72943), (3224, 67332), (3844, 56472), (4344, 49972), (4706, 46128), (4836, 44888), (5611, 38688), (5766, 37648), (5792, 37479), (6448, 33666), (7059, 30752), (7688, 28236), (8688, 24986), (9412, 23064), (9672, 22444), (11222, 19344), (11532, 18824), (12493, 17376), (12896, 16833), (14118, 15376)]