81410260

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{13259}}^1$

素因数の和:13575

約数の個数: 24

約数和(自身を含む): 171531360

約数和(自身を除く): 90121100

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 3070, 6140, 13259, 26518, 53036, 66295, 132590, 265180, 4070513, 8141026, 16282052, 20352565, 40705130, 81410260]

約数ペア:

[(1, 81410260), (2, 40705130), (4, 20352565), (5, 16282052), (10, 8141026), (20, 4070513), (307, 265180), (614, 132590), (1228, 66295), (1535, 53036), (3070, 26518), (6140, 13259)]