2009731280

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1\times {\mathrm{1987}}^1$

素因数の和:2316

約数の個数: 80

約数和(自身を含む): 4792193280

約数和(自身を除く): 2782462000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 269, 376, 470, 538, 752, 940, 1076, 1345, 1880, 1987, 2152, 2690, 3760, 3974, 4304, 5380, 7948, 9935, 10760, 12643, 15896, 19870, 21520, 25286, 31792, 39740, 50572, 63215, 79480, 93389, 101144, 126430, 158960, 186778, 202288, 252860, 373556, 466945, 505720, 534503, 747112, 933890, 1011440, 1069006, 1494224, 1867780, 2138012, 2672515, 3735560, 4276024, 5345030, 7471120, 8552048, 10690060, 21380120, 25121641, 42760240, 50243282, 100486564, 125608205, 200973128, 251216410, 401946256, 502432820, 1004865640, 2009731280]

約数ペア:

[(1, 2009731280), (2, 1004865640), (4, 502432820), (5, 401946256), (8, 251216410), (10, 200973128), (16, 125608205), (20, 100486564), (40, 50243282), (47, 42760240), (80, 25121641), (94, 21380120), (188, 10690060), (235, 8552048), (269, 7471120), (376, 5345030), (470, 4276024), (538, 3735560), (752, 2672515), (940, 2138012), (1076, 1867780), (1345, 1494224), (1880, 1069006), (1987, 1011440), (2152, 933890), (2690, 747112), (3760, 534503), (3974, 505720), (4304, 466945), (5380, 373556), (7948, 252860), (9935, 202288), (10760, 186778), (12643, 158960), (15896, 126430), (19870, 101144), (21520, 93389), (25286, 79480), (31792, 63215), (39740, 50572)]