20915712

素因数分解:

$2^9\times 3^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:133

約数の個数: 160

約数和(自身を含む): 66290400

約数和(自身を除く): 45374688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 32, 34, 36, 48, 51, 54, 64, 68, 72, 89, 96, 102, 108, 128, 136, 144, 153, 178, 192, 204, 216, 256, 267, 272, 288, 306, 356, 384, 408, 432, 459, 512, 534, 544, 576, 612, 712, 768, 801, 816, 864, 918, 1068, 1088, 1152, 1224, 1424, 1513, 1536, 1602, 1632, 1728, 1836, 2136, 2176, 2304, 2403, 2448, 2848, 3026, 3204, 3264, 3456, 3672, 4272, 4352, 4539, 4608, 4806, 4896, 5696, 6052, 6408, 6528, 6912, 7344, 8544, 8704, 9078, 9612, 9792, 11392, 12104, 12816, 13056, 13617, 13824, 14688, 17088, 18156, 19224, 19584, 22784, 24208, 25632, 26112, 27234, 29376, 34176, 36312, 38448, 39168, 40851, 45568, 48416, 51264, 54468, 58752, 68352, 72624, 76896, 78336, 81702, 96832, 102528, 108936, 117504, 136704, 145248, 153792, 163404, 193664, 205056, 217872, 235008, 290496, 307584, 326808, 387328, 410112, 435744, 580992, 615168, 653616, 774656, 871488, 1161984, 1230336, 1307232, 1742976, 2323968, 2614464, 3485952, 5228928, 6971904, 10457856, 20915712]

約数ペア:

[(1, 20915712), (2, 10457856), (3, 6971904), (4, 5228928), (6, 3485952), (8, 2614464), (9, 2323968), (12, 1742976), (16, 1307232), (17, 1230336), (18, 1161984), (24, 871488), (27, 774656), (32, 653616), (34, 615168), (36, 580992), (48, 435744), (51, 410112), (54, 387328), (64, 326808), (68, 307584), (72, 290496), (89, 235008), (96, 217872), (102, 205056), (108, 193664), (128, 163404), (136, 153792), (144, 145248), (153, 136704), (178, 117504), (192, 108936), (204, 102528), (216, 96832), (256, 81702), (267, 78336), (272, 76896), (288, 72624), (306, 68352), (356, 58752), (384, 54468), (408, 51264), (432, 48416), (459, 45568), (512, 40851), (534, 39168), (544, 38448), (576, 36312), (612, 34176), (712, 29376), (768, 27234), (801, 26112), (816, 25632), (864, 24208), (918, 22784), (1068, 19584), (1088, 19224), (1152, 18156), (1224, 17088), (1424, 14688), (1513, 13824), (1536, 13617), (1602, 13056), (1632, 12816), (1728, 12104), (1836, 11392), (2136, 9792), (2176, 9612), (2304, 9078), (2403, 8704), (2448, 8544), (2848, 7344), (3026, 6912), (3204, 6528), (3264, 6408), (3456, 6052), (3672, 5696), (4272, 4896), (4352, 4806), (4539, 4608)]