281664656

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193451}}^1$

素因数の和:193479

約数の個数: 40

約数和(自身を含む): 671665344

約数和(自身を除く): 390000688

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 193451, 386902, 773804, 1354157, 1547608, 2514863, 2708314, 3095216, 5029726, 5416628, 10059452, 10833256, 17604041, 20118904, 21666512, 35208082, 40237808, 70416164, 140832328, 281664656]

約数ペア:

[(1, 281664656), (2, 140832328), (4, 70416164), (7, 40237808), (8, 35208082), (13, 21666512), (14, 20118904), (16, 17604041), (26, 10833256), (28, 10059452), (52, 5416628), (56, 5029726), (91, 3095216), (104, 2708314), (112, 2514863), (182, 1547608), (208, 1354157), (364, 773804), (728, 386902), (1456, 193451)]