20080226

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12289}}^1$

素因数の和:12353

約数の個数: 16

約数和(自身を含む): 32445600

約数和(自身を除く): 12365374

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12289, 24578, 233491, 466982, 528427, 1056854, 10040113, 20080226]

約数ペア:

[(1, 20080226), (2, 10040113), (19, 1056854), (38, 528427), (43, 466982), (86, 233491), (817, 24578), (1634, 12289)]