20890688

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:260

約数の個数: 112

約数和(自身を含む): 54278784

約数和(自身を除く): 33388096

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 32, 34, 52, 56, 64, 68, 91, 104, 112, 119, 136, 182, 208, 211, 221, 224, 238, 272, 364, 416, 422, 442, 448, 476, 544, 728, 832, 844, 884, 952, 1088, 1456, 1477, 1547, 1688, 1768, 1904, 2743, 2912, 2954, 3094, 3376, 3536, 3587, 3808, 5486, 5824, 5908, 6188, 6752, 7072, 7174, 7616, 10972, 11816, 12376, 13504, 14144, 14348, 19201, 21944, 23632, 24752, 25109, 28696, 38402, 43888, 46631, 47264, 49504, 50218, 57392, 76804, 87776, 93262, 94528, 99008, 100436, 114784, 153608, 175552, 186524, 200872, 229568, 307216, 326417, 373048, 401744, 614432, 652834, 746096, 803488, 1228864, 1305668, 1492192, 1606976, 2611336, 2984384, 5222672, 10445344, 20890688]

約数ペア:

[(1, 20890688), (2, 10445344), (4, 5222672), (7, 2984384), (8, 2611336), (13, 1606976), (14, 1492192), (16, 1305668), (17, 1228864), (26, 803488), (28, 746096), (32, 652834), (34, 614432), (52, 401744), (56, 373048), (64, 326417), (68, 307216), (91, 229568), (104, 200872), (112, 186524), (119, 175552), (136, 153608), (182, 114784), (208, 100436), (211, 99008), (221, 94528), (224, 93262), (238, 87776), (272, 76804), (364, 57392), (416, 50218), (422, 49504), (442, 47264), (448, 46631), (476, 43888), (544, 38402), (728, 28696), (832, 25109), (844, 24752), (884, 23632), (952, 21944), (1088, 19201), (1456, 14348), (1477, 14144), (1547, 13504), (1688, 12376), (1768, 11816), (1904, 10972), (2743, 7616), (2912, 7174), (2954, 7072), (3094, 6752), (3376, 6188), (3536, 5908), (3587, 5824), (3808, 5486)]