81812224

素因数分解:

$2^8\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 108

約数和(自身を含む): 185529792

約数和(自身を除く): 103717568

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 61, 62, 64, 104, 122, 124, 128, 169, 208, 244, 248, 256, 338, 403, 416, 488, 496, 676, 793, 806, 832, 976, 992, 1352, 1586, 1612, 1664, 1891, 1952, 1984, 2704, 3172, 3224, 3328, 3782, 3904, 3968, 5239, 5408, 6344, 6448, 7564, 7808, 7936, 10309, 10478, 10816, 12688, 12896, 15128, 15616, 20618, 20956, 21632, 24583, 25376, 25792, 30256, 41236, 41912, 43264, 49166, 50752, 51584, 60512, 82472, 83824, 98332, 101504, 103168, 121024, 164944, 167648, 196664, 203008, 242048, 319579, 329888, 335296, 393328, 484096, 639158, 659776, 670592, 786656, 1278316, 1319552, 1341184, 1573312, 2556632, 2639104, 3146624, 5113264, 6293248, 10226528, 20453056, 40906112, 81812224]

約数ペア:

[(1, 81812224), (2, 40906112), (4, 20453056), (8, 10226528), (13, 6293248), (16, 5113264), (26, 3146624), (31, 2639104), (32, 2556632), (52, 1573312), (61, 1341184), (62, 1319552), (64, 1278316), (104, 786656), (122, 670592), (124, 659776), (128, 639158), (169, 484096), (208, 393328), (244, 335296), (248, 329888), (256, 319579), (338, 242048), (403, 203008), (416, 196664), (488, 167648), (496, 164944), (676, 121024), (793, 103168), (806, 101504), (832, 98332), (976, 83824), (992, 82472), (1352, 60512), (1586, 51584), (1612, 50752), (1664, 49166), (1891, 43264), (1952, 41912), (1984, 41236), (2704, 30256), (3172, 25792), (3224, 25376), (3328, 24583), (3782, 21632), (3904, 20956), (3968, 20618), (5239, 15616), (5408, 15128), (6344, 12896), (6448, 12688), (7564, 10816), (7808, 10478), (7936, 10309)]