30990128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{148991}}^1$

素因数の和:149012

約数の個数: 20

約数和(自身を含む): 64662528

約数和(自身を除く): 33672400

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 148991, 297982, 595964, 1191928, 1936883, 2383856, 3873766, 7747532, 15495064, 30990128]

約数ペア:

[(1, 30990128), (2, 15495064), (4, 7747532), (8, 3873766), (13, 2383856), (16, 1936883), (26, 1191928), (52, 595964), (104, 297982), (208, 148991)]