12640945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1171}}^1$

素因数の和:1320

約数の個数: 16

約数和(自身を含む): 16201728

約数和(自身を除く): 3560783

約数列:

[1, 5, 17, 85, 127, 635, 1171, 2159, 5855, 10795, 19907, 99535, 148717, 743585, 2528189, 12640945]

約数ペア:

[(1, 12640945), (5, 2528189), (17, 743585), (85, 148717), (127, 99535), (635, 19907), (1171, 10795), (2159, 5855)]