399552010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{279407}}^1$

素因数の和:279438

約数の個数: 32

約数和(自身を含む): 844929792

約数和(自身を除く): 445377782

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 279407, 558814, 1397035, 2794070, 3073477, 3632291, 6146954, 7264582, 15367385, 18161455, 30734770, 36322910, 39955201, 79910402, 199776005, 399552010]

約数ペア:

[(1, 399552010), (2, 199776005), (5, 79910402), (10, 39955201), (11, 36322910), (13, 30734770), (22, 18161455), (26, 15367385), (55, 7264582), (65, 6146954), (110, 3632291), (130, 3073477), (143, 2794070), (286, 1397035), (715, 558814), (1430, 279407)]