69990128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{336491}}^1$

素因数の和:336512

約数の個数: 20

約数和(自身を含む): 146037528

約数和(自身を除く): 76047400

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 336491, 672982, 1345964, 2691928, 4374383, 5383856, 8748766, 17497532, 34995064, 69990128]

約数ペア:

[(1, 69990128), (2, 34995064), (4, 17497532), (8, 8748766), (13, 5383856), (16, 4374383), (26, 2691928), (52, 1345964), (104, 672982), (208, 336491)]