28921370

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{653}}^1$

素因数の和:806

約数の個数: 32

約数和(自身を含む): 53868672

約数和(自身を除く): 24947302

約数列:

[1, 2, 5, 10, 43, 86, 103, 206, 215, 430, 515, 653, 1030, 1306, 3265, 4429, 6530, 8858, 22145, 28079, 44290, 56158, 67259, 134518, 140395, 280790, 336295, 672590, 2892137, 5784274, 14460685, 28921370]

約数ペア:

[(1, 28921370), (2, 14460685), (5, 5784274), (10, 2892137), (43, 672590), (86, 336295), (103, 280790), (206, 140395), (215, 134518), (430, 67259), (515, 56158), (653, 44290), (1030, 28079), (1306, 22145), (3265, 8858), (4429, 6530)]