84400760

素因数分解:

$2^3\times 5^1\times {\mathrm{2110019}}^1$

素因数の和:2110030

約数の個数: 16

約数和(自身を含む): 189901800

約数和(自身を除く): 105501040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2110019, 4220038, 8440076, 10550095, 16880152, 21100190, 42200380, 84400760]

約数ペア:

[(1, 84400760), (2, 42200380), (4, 21100190), (5, 16880152), (8, 10550095), (10, 8440076), (20, 4220038), (40, 2110019)]