20807839654

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1\times {\mathrm{1319}}^1$

素因数の和:1745

約数の個数: 64

約数和(自身を含む): 37241487360

約数和(自身を除く): 16433647706

約数列:

[1, 2, 7, 14, 31, 62, 163, 217, 223, 326, 434, 446, 1141, 1319, 1561, 2282, 2638, 3122, 5053, 6913, 9233, 10106, 13826, 18466, 35371, 36349, 40889, 48391, 70742, 72698, 81778, 96782, 214997, 254443, 286223, 294137, 429994, 508886, 572446, 588274, 1126819, 1504979, 2058959, 2253638, 3009958, 4117918, 6664907, 7887733, 9118247, 13329814, 15775466, 18236494, 46654349, 47944331, 63827729, 93308698, 95888662, 127655458, 335610317, 671220634, 1486274261, 2972548522, 10403919827, 20807839654]

約数ペア:

[(1, 20807839654), (2, 10403919827), (7, 2972548522), (14, 1486274261), (31, 671220634), (62, 335610317), (163, 127655458), (217, 95888662), (223, 93308698), (326, 63827729), (434, 47944331), (446, 46654349), (1141, 18236494), (1319, 15775466), (1561, 13329814), (2282, 9118247), (2638, 7887733), (3122, 6664907), (5053, 4117918), (6913, 3009958), (9233, 2253638), (10106, 2058959), (13826, 1504979), (18466, 1126819), (35371, 588274), (36349, 572446), (40889, 508886), (48391, 429994), (70742, 294137), (72698, 286223), (81778, 254443), (96782, 214997)]