20397312

素因数分解:

$2^8\times 3^3\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:265

約数の個数: 144

約数和(自身を含む): 65244480

約数和(自身を除く): 44847168

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 64, 72, 78, 96, 104, 108, 117, 128, 144, 156, 192, 208, 216, 227, 234, 256, 288, 312, 351, 384, 416, 432, 454, 468, 576, 624, 681, 702, 768, 832, 864, 908, 936, 1152, 1248, 1362, 1404, 1664, 1728, 1816, 1872, 2043, 2304, 2496, 2724, 2808, 2951, 3328, 3456, 3632, 3744, 4086, 4992, 5448, 5616, 5902, 6129, 6912, 7264, 7488, 8172, 8853, 9984, 10896, 11232, 11804, 12258, 14528, 14976, 16344, 17706, 21792, 22464, 23608, 24516, 26559, 29056, 29952, 32688, 35412, 43584, 44928, 47216, 49032, 53118, 58112, 65376, 70824, 79677, 87168, 89856, 94432, 98064, 106236, 130752, 141648, 159354, 174336, 188864, 196128, 212472, 261504, 283296, 318708, 377728, 392256, 424944, 523008, 566592, 637416, 755456, 784512, 849888, 1133184, 1274832, 1569024, 1699776, 2266368, 2549664, 3399552, 5099328, 6799104, 10198656, 20397312]

約数ペア:

[(1, 20397312), (2, 10198656), (3, 6799104), (4, 5099328), (6, 3399552), (8, 2549664), (9, 2266368), (12, 1699776), (13, 1569024), (16, 1274832), (18, 1133184), (24, 849888), (26, 784512), (27, 755456), (32, 637416), (36, 566592), (39, 523008), (48, 424944), (52, 392256), (54, 377728), (64, 318708), (72, 283296), (78, 261504), (96, 212472), (104, 196128), (108, 188864), (117, 174336), (128, 159354), (144, 141648), (156, 130752), (192, 106236), (208, 98064), (216, 94432), (227, 89856), (234, 87168), (256, 79677), (288, 70824), (312, 65376), (351, 58112), (384, 53118), (416, 49032), (432, 47216), (454, 44928), (468, 43584), (576, 35412), (624, 32688), (681, 29952), (702, 29056), (768, 26559), (832, 24516), (864, 23608), (908, 22464), (936, 21792), (1152, 17706), (1248, 16344), (1362, 14976), (1404, 14528), (1664, 12258), (1728, 11804), (1816, 11232), (1872, 10896), (2043, 9984), (2304, 8853), (2496, 8172), (2724, 7488), (2808, 7264), (2951, 6912), (3328, 6129), (3456, 5902), (3632, 5616), (3744, 5448), (4086, 4992)]