20806300879

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1\times {\mathrm{311}}^1$

素因数の和:712

約数の個数: 64

約数和(自身を含む): 26946017280

約数和(自身を除く): 6139716401

約数列:

[1, 7, 13, 29, 91, 101, 203, 251, 311, 377, 707, 1313, 1757, 2177, 2639, 2929, 3263, 4043, 7279, 9019, 9191, 20503, 22841, 25351, 28301, 31411, 38077, 50953, 63133, 78061, 94627, 117247, 177457, 219877, 266539, 329563, 408343, 546427, 662389, 735179, 820729, 910919, 1014793, 2263769, 2306941, 2858401, 5146253, 6376433, 7103551, 7884161, 9557327, 11841947, 15846383, 29428997, 55189127, 66901289, 82893629, 102494093, 206002979, 228640669, 717458651, 1600484683, 2972328697, 20806300879]

約数ペア:

[(1, 20806300879), (7, 2972328697), (13, 1600484683), (29, 717458651), (91, 228640669), (101, 206002979), (203, 102494093), (251, 82893629), (311, 66901289), (377, 55189127), (707, 29428997), (1313, 15846383), (1757, 11841947), (2177, 9557327), (2639, 7884161), (2929, 7103551), (3263, 6376433), (4043, 5146253), (7279, 2858401), (9019, 2306941), (9191, 2263769), (20503, 1014793), (22841, 910919), (25351, 820729), (28301, 735179), (31411, 662389), (38077, 546427), (50953, 408343), (63133, 329563), (78061, 266539), (94627, 219877), (117247, 177457)]