81687070

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{121921}}^1$

素因数の和:121995

約数の個数: 16

約数和(自身を含む): 149232528

約数和(自身を除く): 67545458

約数列:

[1, 2, 5, 10, 67, 134, 335, 670, 121921, 243842, 609605, 1219210, 8168707, 16337414, 40843535, 81687070]

約数ペア:

[(1, 81687070), (2, 40843535), (5, 16337414), (10, 8168707), (67, 1219210), (134, 609605), (335, 243842), (670, 121921)]