15121820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{108013}}^1$

素因数の和:108029

約数の個数: 24

約数和(自身を含む): 36292704

約数和(自身を除く): 21170884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 108013, 216026, 432052, 540065, 756091, 1080130, 1512182, 2160260, 3024364, 3780455, 7560910, 15121820]

約数ペア:

[(1, 15121820), (2, 7560910), (4, 3780455), (5, 3024364), (7, 2160260), (10, 1512182), (14, 1080130), (20, 756091), (28, 540065), (35, 432052), (70, 216026), (140, 108013)]