1638970112

素因数分解:

$2^8\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{881}}^1$

素因数の和:966

約数の個数: 108

約数和(自身を含む): 3629052504

約数和(自身を除く): 1990082392

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 128, 169, 172, 208, 256, 338, 344, 416, 559, 676, 688, 832, 881, 1118, 1352, 1376, 1664, 1762, 2236, 2704, 2752, 3328, 3524, 4472, 5408, 5504, 7048, 7267, 8944, 10816, 11008, 11453, 14096, 14534, 17888, 21632, 22906, 28192, 29068, 35776, 37883, 43264, 45812, 56384, 58136, 71552, 75766, 91624, 112768, 116272, 143104, 148889, 151532, 183248, 225536, 232544, 297778, 303064, 366496, 465088, 492479, 595556, 606128, 732992, 930176, 984958, 1191112, 1212256, 1465984, 1860352, 1969916, 2382224, 2424512, 2931968, 3939832, 4764448, 4849024, 6402227, 7879664, 9528896, 9698048, 12804454, 15759328, 19057792, 25608908, 31518656, 38115584, 51217816, 63037312, 102435632, 126074624, 204871264, 409742528, 819485056, 1638970112]

約数ペア:

[(1, 1638970112), (2, 819485056), (4, 409742528), (8, 204871264), (13, 126074624), (16, 102435632), (26, 63037312), (32, 51217816), (43, 38115584), (52, 31518656), (64, 25608908), (86, 19057792), (104, 15759328), (128, 12804454), (169, 9698048), (172, 9528896), (208, 7879664), (256, 6402227), (338, 4849024), (344, 4764448), (416, 3939832), (559, 2931968), (676, 2424512), (688, 2382224), (832, 1969916), (881, 1860352), (1118, 1465984), (1352, 1212256), (1376, 1191112), (1664, 984958), (1762, 930176), (2236, 732992), (2704, 606128), (2752, 595556), (3328, 492479), (3524, 465088), (4472, 366496), (5408, 303064), (5504, 297778), (7048, 232544), (7267, 225536), (8944, 183248), (10816, 151532), (11008, 148889), (11453, 143104), (14096, 116272), (14534, 112768), (17888, 91624), (21632, 75766), (22906, 71552), (28192, 58136), (29068, 56384), (35776, 45812), (37883, 43264)]