133713680

素因数分解:

$2^4\times 5^1\times {\mathrm{1671421}}^1$

素因数の和:1671434

約数の個数: 20

約数和(自身を含む): 310884492

約数和(自身を除く): 177170812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1671421, 3342842, 6685684, 8357105, 13371368, 16714210, 26742736, 33428420, 66856840, 133713680]

約数ペア:

[(1, 133713680), (2, 66856840), (4, 33428420), (5, 26742736), (8, 16714210), (10, 13371368), (16, 8357105), (20, 6685684), (40, 3342842), (80, 1671421)]