81127928

素因数分解:

$2^3\times 7^2\times {\mathrm{43}}^1\times {\mathrm{4813}}^1$

素因数の和:4876

約数の個数: 48

約数和(自身を含む): 181102680

約数和(自身を除く): 99974752

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 49, 56, 86, 98, 172, 196, 301, 344, 392, 602, 1204, 2107, 2408, 4214, 4813, 8428, 9626, 16856, 19252, 33691, 38504, 67382, 134764, 206959, 235837, 269528, 413918, 471674, 827836, 943348, 1448713, 1655672, 1886696, 2897426, 5794852, 10140991, 11589704, 20281982, 40563964, 81127928]

約数ペア:

[(1, 81127928), (2, 40563964), (4, 20281982), (7, 11589704), (8, 10140991), (14, 5794852), (28, 2897426), (43, 1886696), (49, 1655672), (56, 1448713), (86, 943348), (98, 827836), (172, 471674), (196, 413918), (301, 269528), (344, 235837), (392, 206959), (602, 134764), (1204, 67382), (2107, 38504), (2408, 33691), (4214, 19252), (4813, 16856), (8428, 9626)]