81427736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{4987}}^1$

素因数の和:5163

約数の個数: 32

約数和(自身を含む): 165501840

約数和(自身を除く): 84074104

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 157, 314, 628, 1256, 2041, 4082, 4987, 8164, 9974, 16328, 19948, 39896, 64831, 129662, 259324, 518648, 782959, 1565918, 3131836, 6263672, 10178467, 20356934, 40713868, 81427736]

約数ペア:

[(1, 81427736), (2, 40713868), (4, 20356934), (8, 10178467), (13, 6263672), (26, 3131836), (52, 1565918), (104, 782959), (157, 518648), (314, 259324), (628, 129662), (1256, 64831), (2041, 39896), (4082, 19948), (4987, 16328), (8164, 9974)]