64986974

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{80629}}^1$

素因数の和:80675

約数の個数: 16

約数和(自身を含む): 108366720

約数和(自身を除く): 43379746

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 80629, 161258, 1048177, 2096354, 2499499, 4998998, 32493487, 64986974]

約数ペア:

[(1, 64986974), (2, 32493487), (13, 4998998), (26, 2499499), (31, 2096354), (62, 1048177), (403, 161258), (806, 80629)]