28162340

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{3989}}^1$

素因数の和:4351

約数の個数: 24

約数和(自身を含む): 59323320

約数和(自身を除く): 31160980

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 3530, 3989, 7060, 7978, 15956, 19945, 39890, 79780, 1408117, 2816234, 5632468, 7040585, 14081170, 28162340]

約数ペア:

[(1, 28162340), (2, 14081170), (4, 7040585), (5, 5632468), (10, 2816234), (20, 1408117), (353, 79780), (706, 39890), (1412, 19945), (1765, 15956), (3530, 7978), (3989, 7060)]