664838

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 16

約数和(自身を含む): 1058400

約数和(自身を除く): 393562

約数列:

[1, 2, 23, 46, 97, 149, 194, 298, 2231, 3427, 4462, 6854, 14453, 28906, 332419, 664838]

約数ペア:

[(1, 664838), (2, 332419), (23, 28906), (46, 14453), (97, 6854), (149, 4462), (194, 3427), (298, 2231)]