81728385

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{223}}^1\times {\mathrm{461}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 134120448

約数和(自身を除く): 52392063

約数列:

[1, 3, 5, 15, 53, 159, 223, 265, 461, 669, 795, 1115, 1383, 2305, 3345, 6915, 11819, 24433, 35457, 59095, 73299, 102803, 122165, 177285, 308409, 366495, 514015, 1542045, 5448559, 16345677, 27242795, 81728385]

約数ペア:

[(1, 81728385), (3, 27242795), (5, 16345677), (15, 5448559), (53, 1542045), (159, 514015), (223, 366495), (265, 308409), (461, 177285), (669, 122165), (795, 102803), (1115, 73299), (1383, 59095), (2305, 35457), (3345, 24433), (6915, 11819)]