1285126820

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{79231}}^1$

素因数の和:80051

約数の個数: 24

約数和(自身を含む): 2702128128

約数和(自身を除く): 1417001308

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 3244, 4055, 8110, 16220, 79231, 158462, 316924, 396155, 792310, 1584620, 64256341, 128512682, 257025364, 321281705, 642563410, 1285126820]

約数ペア:

[(1, 1285126820), (2, 642563410), (4, 321281705), (5, 257025364), (10, 128512682), (20, 64256341), (811, 1584620), (1622, 792310), (3244, 396155), (4055, 316924), (8110, 158462), (16220, 79231)]