87156920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{16633}}^1$

素因数の和:16775

約数の個数: 32

約数和(自身を含む): 197611920

約数和(自身を除く): 110455000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 16633, 33266, 66532, 83165, 133064, 166330, 332660, 665320, 2178923, 4357846, 8715692, 10894615, 17431384, 21789230, 43578460, 87156920]

約数ペア:

[(1, 87156920), (2, 43578460), (4, 21789230), (5, 17431384), (8, 10894615), (10, 8715692), (20, 4357846), (40, 2178923), (131, 665320), (262, 332660), (524, 166330), (655, 133064), (1048, 83165), (1310, 66532), (2620, 33266), (5240, 16633)]