81542968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21191}}^1$

素因数の和:21247

約数の個数: 32

約数和(自身を含む): 169112160

約数和(自身を除く): 87569192

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 21191, 42382, 84764, 169528, 275483, 550966, 784067, 1101932, 1568134, 2203864, 3136268, 6272536, 10192871, 20385742, 40771484, 81542968]

約数ペア:

[(1, 81542968), (2, 40771484), (4, 20385742), (8, 10192871), (13, 6272536), (26, 3136268), (37, 2203864), (52, 1568134), (74, 1101932), (104, 784067), (148, 550966), (296, 275483), (481, 169528), (962, 84764), (1924, 42382), (3848, 21191)]