81661568

素因数分解:

$2^7\times {\mathrm{653}}^1\times {\mathrm{977}}^1$

素因数の和:1644

約数の個数: 32

約数和(自身を含む): 163101060

約数和(自身を除く): 81439492

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 653, 977, 1306, 1954, 2612, 3908, 5224, 7816, 10448, 15632, 20896, 31264, 41792, 62528, 83584, 125056, 637981, 1275962, 2551924, 5103848, 10207696, 20415392, 40830784, 81661568]

約数ペア:

[(1, 81661568), (2, 40830784), (4, 20415392), (8, 10207696), (16, 5103848), (32, 2551924), (64, 1275962), (128, 637981), (653, 125056), (977, 83584), (1306, 62528), (1954, 41792), (2612, 31264), (3908, 20896), (5224, 15632), (7816, 10448)]