40390100

素因数分解:

$2^2\times 5^2\times {\mathrm{403901}}^1$

素因数の和:403915

約数の個数: 18

約数和(自身を含む): 87646734

約数和(自身を除く): 47256634

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 403901, 807802, 1615604, 2019505, 4039010, 8078020, 10097525, 20195050, 40390100]

約数ペア:

[(1, 40390100), (2, 20195050), (4, 10097525), (5, 8078020), (10, 4039010), (20, 2019505), (25, 1615604), (50, 807802), (100, 403901)]