20321420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6311}}^1$

素因数の和:6350

約数の個数: 48

約数和(自身を含む): 50899968

約数和(自身を除く): 30578548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6311, 12622, 25244, 31555, 44177, 63110, 88354, 126220, 145153, 176708, 220885, 290306, 441770, 580612, 725765, 883540, 1016071, 1451530, 2032142, 2903060, 4064284, 5080355, 10160710, 20321420]

約数ペア:

[(1, 20321420), (2, 10160710), (4, 5080355), (5, 4064284), (7, 2903060), (10, 2032142), (14, 1451530), (20, 1016071), (23, 883540), (28, 725765), (35, 580612), (46, 441770), (70, 290306), (92, 220885), (115, 176708), (140, 145153), (161, 126220), (230, 88354), (322, 63110), (460, 44177), (644, 31555), (805, 25244), (1610, 12622), (3220, 6311)]