28162900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6869}}^1$

素因数の和:6924

約数の個数: 36

約数和(自身を含む): 62613180

約数和(自身を除く): 34450280

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 6869, 13738, 27476, 34345, 68690, 137380, 171725, 281629, 343450, 563258, 686900, 1126516, 1408145, 2816290, 5632580, 7040725, 14081450, 28162900]

約数ペア:

[(1, 28162900), (2, 14081450), (4, 7040725), (5, 5632580), (10, 2816290), (20, 1408145), (25, 1126516), (41, 686900), (50, 563258), (82, 343450), (100, 281629), (164, 171725), (205, 137380), (410, 68690), (820, 34345), (1025, 27476), (2050, 13738), (4100, 6869)]