172920555

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{55691}}^1$

素因数の和:55728

約数の個数: 32

約数和(自身を含む): 320785920

約数和(自身を除く): 147865365

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 55691, 167073, 278455, 501219, 835365, 1280893, 1503657, 2506095, 3842679, 6404465, 7518285, 11528037, 19213395, 34584111, 57640185, 172920555]

約数ペア:

[(1, 172920555), (3, 57640185), (5, 34584111), (9, 19213395), (15, 11528037), (23, 7518285), (27, 6404465), (45, 3842679), (69, 2506095), (115, 1503657), (135, 1280893), (207, 835365), (345, 501219), (621, 278455), (1035, 167073), (3105, 55691)]