81211090

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{188863}}^1$

素因数の和:188913

約数の個数: 16

約数和(自身を含む): 149580288

約数和(自身を除く): 68369198

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 188863, 377726, 944315, 1888630, 8121109, 16242218, 40605545, 81211090]

約数ペア:

[(1, 81211090), (2, 40605545), (5, 16242218), (10, 8121109), (43, 1888630), (86, 944315), (215, 377726), (430, 188863)]