64841985

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36947}}^1$

素因数の和:36974

約数の個数: 32

約数和(自身を含む): 124145280

約数和(自身を除く): 59303295

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 36947, 110841, 184735, 332523, 480311, 554205, 997569, 1440933, 1662615, 2401555, 4322799, 4987845, 7204665, 12968397, 21613995, 64841985]

約数ペア:

[(1, 64841985), (3, 21613995), (5, 12968397), (9, 7204665), (13, 4987845), (15, 4322799), (27, 2401555), (39, 1662615), (45, 1440933), (65, 997569), (117, 554205), (135, 480311), (195, 332523), (351, 184735), (585, 110841), (1755, 36947)]