81866408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{11087}}^1$

素因数の和:11177

約数の個数: 32

約数和(自身を含む): 167650560

約数和(自身を除く): 85784152

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1846, 3692, 7384, 11087, 22174, 44348, 88696, 144131, 288262, 576524, 787177, 1153048, 1574354, 3148708, 6297416, 10233301, 20466602, 40933204, 81866408]

約数ペア:

[(1, 81866408), (2, 40933204), (4, 20466602), (8, 10233301), (13, 6297416), (26, 3148708), (52, 1574354), (71, 1153048), (104, 787177), (142, 576524), (284, 288262), (568, 144131), (923, 88696), (1846, 44348), (3692, 22174), (7384, 11087)]