19959369530

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{397}}^1\times {\mathrm{1277}}^1$

素因数の和:1839

約数の個数: 64

約数和(自身を含む): 37501304832

約数和(自身を除く): 17541935302

約数列:

[1, 2, 5, 10, 31, 62, 127, 155, 254, 310, 397, 635, 794, 1270, 1277, 1985, 2554, 3937, 3970, 6385, 7874, 12307, 12770, 19685, 24614, 39370, 39587, 50419, 61535, 79174, 100838, 123070, 162179, 197935, 252095, 324358, 395870, 504190, 506969, 810895, 1013938, 1562989, 1621790, 2534845, 3125978, 5027549, 5069690, 7814945, 10055098, 15629890, 15716039, 25137745, 31432078, 50275490, 64385063, 78580195, 128770126, 157160390, 321925315, 643850630, 1995936953, 3991873906, 9979684765, 19959369530]

約数ペア:

[(1, 19959369530), (2, 9979684765), (5, 3991873906), (10, 1995936953), (31, 643850630), (62, 321925315), (127, 157160390), (155, 128770126), (254, 78580195), (310, 64385063), (397, 50275490), (635, 31432078), (794, 25137745), (1270, 15716039), (1277, 15629890), (1985, 10055098), (2554, 7814945), (3937, 5069690), (3970, 5027549), (6385, 3125978), (7874, 2534845), (12307, 1621790), (12770, 1562989), (19685, 1013938), (24614, 810895), (39370, 506969), (39587, 504190), (50419, 395870), (61535, 324358), (79174, 252095), (100838, 197935), (123070, 162179)]