81486416

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{6521}}^1$

素因数の和:6611

約数の個数: 40

約数和(自身を含む): 174685248

約数和(自身を除く): 93198832

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 71, 88, 142, 176, 284, 568, 781, 1136, 1562, 3124, 6248, 6521, 12496, 13042, 26084, 52168, 71731, 104336, 143462, 286924, 462991, 573848, 925982, 1147696, 1851964, 3703928, 5092901, 7407856, 10185802, 20371604, 40743208, 81486416]

約数ペア:

[(1, 81486416), (2, 40743208), (4, 20371604), (8, 10185802), (11, 7407856), (16, 5092901), (22, 3703928), (44, 1851964), (71, 1147696), (88, 925982), (142, 573848), (176, 462991), (284, 286924), (568, 143462), (781, 104336), (1136, 71731), (1562, 52168), (3124, 26084), (6248, 13042), (6521, 12496)]