20804517115

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{379}}^1\times {\mathrm{4157}}^1$

素因数の和:4699

約数の個数: 32

約数和(自身を含む): 26544672000

約数和(自身を除く): 5740154885

約数列:

[1, 5, 19, 95, 139, 379, 695, 1895, 2641, 4157, 7201, 13205, 20785, 36005, 52681, 78983, 263405, 394915, 577823, 1000939, 1575503, 2889115, 5004695, 7877515, 10978637, 29934557, 54893185, 149672785, 218994917, 1094974585, 4160903423, 20804517115]

約数ペア:

[(1, 20804517115), (5, 4160903423), (19, 1094974585), (95, 218994917), (139, 149672785), (379, 54893185), (695, 29934557), (1895, 10978637), (2641, 7877515), (4157, 5004695), (7201, 2889115), (13205, 1575503), (20785, 1000939), (36005, 577823), (52681, 394915), (78983, 263405)]