678408534

素因数分解:

$2^1\times 3^4\times {\mathrm{4187707}}^1$

素因数の和:4187721

約数の個数: 20

約数和(自身を含む): 1520138004

約数和(自身を除く): 841729470

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 4187707, 8375414, 12563121, 25126242, 37689363, 75378726, 113068089, 226136178, 339204267, 678408534]

約数ペア:

[(1, 678408534), (2, 339204267), (3, 226136178), (6, 113068089), (9, 75378726), (18, 37689363), (27, 25126242), (54, 12563121), (81, 8375414), (162, 4187707)]