81849890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{282241}}^1$

素因数の和:282277

約数の個数: 16

約数和(自身を含む): 152410680

約数和(自身を除く): 70560790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 282241, 564482, 1411205, 2822410, 8184989, 16369978, 40924945, 81849890]

約数ペア:

[(1, 81849890), (2, 40924945), (5, 16369978), (10, 8184989), (29, 2822410), (58, 1411205), (145, 564482), (290, 282241)]