20409064

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{631}}^1$

素因数の和:961

約数の個数: 32

約数和(自身を含む): 41408640

約数和(自身を除く): 20999576

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 311, 622, 631, 1244, 1262, 2488, 2524, 4043, 5048, 8086, 8203, 16172, 16406, 32344, 32812, 65624, 196241, 392482, 784964, 1569928, 2551133, 5102266, 10204532, 20409064]

約数ペア:

[(1, 20409064), (2, 10204532), (4, 5102266), (8, 2551133), (13, 1569928), (26, 784964), (52, 392482), (104, 196241), (311, 65624), (622, 32812), (631, 32344), (1244, 16406), (1262, 16172), (2488, 8203), (2524, 8086), (4043, 5048)]