19902625

素因数分解:

$5^3\times {\mathrm{89}}^1\times {\mathrm{1789}}^1$

素因数の和:1893

約数の個数: 16

約数和(自身を含む): 25131600

約数和(自身を除く): 5228975

約数列:

[1, 5, 25, 89, 125, 445, 1789, 2225, 8945, 11125, 44725, 159221, 223625, 796105, 3980525, 19902625]

約数ペア:

[(1, 19902625), (5, 3980525), (25, 796105), (89, 223625), (125, 159221), (445, 44725), (1789, 11125), (2225, 8945)]