81012008

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{379}}^1$

素因数の和:750

約数の個数: 64

約数和(自身を含む): 190425600

約数和(自身を除く): 109413592

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 347, 379, 616, 694, 758, 1388, 1516, 2429, 2653, 2776, 3032, 3817, 4169, 4858, 5306, 7634, 8338, 9716, 10612, 15268, 16676, 19432, 21224, 26719, 29183, 30536, 33352, 53438, 58366, 106876, 116732, 131513, 213752, 233464, 263026, 526052, 920591, 1052104, 1446643, 1841182, 2893286, 3682364, 5786572, 7364728, 10126501, 11573144, 20253002, 40506004, 81012008]

約数ペア:

[(1, 81012008), (2, 40506004), (4, 20253002), (7, 11573144), (8, 10126501), (11, 7364728), (14, 5786572), (22, 3682364), (28, 2893286), (44, 1841182), (56, 1446643), (77, 1052104), (88, 920591), (154, 526052), (308, 263026), (347, 233464), (379, 213752), (616, 131513), (694, 116732), (758, 106876), (1388, 58366), (1516, 53438), (2429, 33352), (2653, 30536), (2776, 29183), (3032, 26719), (3817, 21224), (4169, 19432), (4858, 16676), (5306, 15268), (7634, 10612), (8338, 9716)]