640942081

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{69149}}^1$

素因数の和:69216

約数の個数: 16

約数和(自身を含む): 743500800

約数和(自身を除く): 102558719

約数列:

[1, 13, 23, 31, 299, 403, 713, 9269, 69149, 898937, 1590427, 2143619, 20675551, 27867047, 49303237, 640942081]

約数ペア:

[(1, 640942081), (13, 49303237), (23, 27867047), (31, 20675551), (299, 2143619), (403, 1590427), (713, 898937), (9269, 69149)]