64398512

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{20431}}^1$

素因数の和:20636

約数の個数: 20

約数和(自身を含む): 125411616

約数和(自身を除く): 61013104

約数列:

[1, 2, 4, 8, 16, 197, 394, 788, 1576, 3152, 20431, 40862, 81724, 163448, 326896, 4024907, 8049814, 16099628, 32199256, 64398512]

約数ペア:

[(1, 64398512), (2, 32199256), (4, 16099628), (8, 8049814), (16, 4024907), (197, 326896), (394, 163448), (788, 81724), (1576, 40862), (3152, 20431)]