128609968

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{113213}}^1$

素因数の和:113292

約数の個数: 20

約数和(自身を含む): 252693648

約数和(自身を除く): 124083680

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 113213, 226426, 452852, 905704, 1811408, 8038123, 16076246, 32152492, 64304984, 128609968]

約数ペア:

[(1, 128609968), (2, 64304984), (4, 32152492), (8, 16076246), (16, 8038123), (71, 1811408), (142, 905704), (284, 452852), (568, 226426), (1136, 113213)]