128876330360

素因数分解:

$2^3\times 5^1\times {\mathrm{3221908259}}^1$

素因数の和:3221908270

約数の個数: 16

約数和(自身を含む): 289971743400

約数和(自身を除く): 161095413040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3221908259, 6443816518, 12887633036, 16109541295, 25775266072, 32219082590, 64438165180, 128876330360]

約数ペア:

[(1, 128876330360), (2, 64438165180), (4, 32219082590), (5, 25775266072), (8, 16109541295), (10, 12887633036), (20, 6443816518), (40, 3221908259)]