20884864

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1$

素因数の和:208

約数の個数: 128

約数和(自身を含む): 56206080

約数和(自身を除く): 35321216

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 32, 44, 52, 56, 64, 77, 88, 91, 104, 112, 128, 143, 154, 163, 176, 182, 208, 224, 286, 308, 326, 352, 364, 416, 448, 572, 616, 652, 704, 728, 832, 896, 1001, 1141, 1144, 1232, 1304, 1408, 1456, 1664, 1793, 2002, 2119, 2282, 2288, 2464, 2608, 2912, 3586, 4004, 4238, 4564, 4576, 4928, 5216, 5824, 7172, 8008, 8476, 9128, 9152, 9856, 10432, 11648, 12551, 14344, 14833, 16016, 16952, 18256, 18304, 20864, 23309, 25102, 28688, 29666, 32032, 33904, 36512, 46618, 50204, 57376, 59332, 64064, 67808, 73024, 93236, 100408, 114752, 118664, 128128, 135616, 146048, 163163, 186472, 200816, 229504, 237328, 271232, 326326, 372944, 401632, 474656, 652652, 745888, 803264, 949312, 1305304, 1491776, 1606528, 1898624, 2610608, 2983552, 5221216, 10442432, 20884864]

約数ペア:

[(1, 20884864), (2, 10442432), (4, 5221216), (7, 2983552), (8, 2610608), (11, 1898624), (13, 1606528), (14, 1491776), (16, 1305304), (22, 949312), (26, 803264), (28, 745888), (32, 652652), (44, 474656), (52, 401632), (56, 372944), (64, 326326), (77, 271232), (88, 237328), (91, 229504), (104, 200816), (112, 186472), (128, 163163), (143, 146048), (154, 135616), (163, 128128), (176, 118664), (182, 114752), (208, 100408), (224, 93236), (286, 73024), (308, 67808), (326, 64064), (352, 59332), (364, 57376), (416, 50204), (448, 46618), (572, 36512), (616, 33904), (652, 32032), (704, 29666), (728, 28688), (832, 25102), (896, 23309), (1001, 20864), (1141, 18304), (1144, 18256), (1232, 16952), (1304, 16016), (1408, 14833), (1456, 14344), (1664, 12551), (1793, 11648), (2002, 10432), (2119, 9856), (2282, 9152), (2288, 9128), (2464, 8476), (2608, 8008), (2912, 7172), (3586, 5824), (4004, 5216), (4238, 4928), (4564, 4576)]