20561369080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{72923}}^1$

素因数の和:73013

約数の個数: 128

約数和(自身を含む): 56705702400

約数和(自身を除く): 36144333320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 53, 56, 70, 76, 95, 106, 133, 140, 152, 190, 212, 265, 266, 280, 371, 380, 424, 530, 532, 665, 742, 760, 1007, 1060, 1064, 1330, 1484, 1855, 2014, 2120, 2660, 2968, 3710, 4028, 5035, 5320, 7049, 7420, 8056, 10070, 14098, 14840, 20140, 28196, 35245, 40280, 56392, 70490, 72923, 140980, 145846, 281960, 291692, 364615, 510461, 583384, 729230, 1020922, 1385537, 1458460, 2041844, 2552305, 2771074, 2916920, 3864919, 4083688, 5104610, 5542148, 6927685, 7729838, 9698759, 10209220, 11084296, 13855370, 15459676, 19324595, 19397518, 20418440, 27054433, 27710740, 30919352, 38649190, 38795036, 48493795, 54108866, 55421480, 73433461, 77298380, 77590072, 96987590, 108217732, 135272165, 146866922, 154596760, 193975180, 216435464, 270544330, 293733844, 367167305, 387950360, 514034227, 541088660, 587467688, 734334610, 1028068454, 1082177320, 1468669220, 2056136908, 2570171135, 2937338440, 4112273816, 5140342270, 10280684540, 20561369080]

約数ペア:

[(1, 20561369080), (2, 10280684540), (4, 5140342270), (5, 4112273816), (7, 2937338440), (8, 2570171135), (10, 2056136908), (14, 1468669220), (19, 1082177320), (20, 1028068454), (28, 734334610), (35, 587467688), (38, 541088660), (40, 514034227), (53, 387950360), (56, 367167305), (70, 293733844), (76, 270544330), (95, 216435464), (106, 193975180), (133, 154596760), (140, 146866922), (152, 135272165), (190, 108217732), (212, 96987590), (265, 77590072), (266, 77298380), (280, 73433461), (371, 55421480), (380, 54108866), (424, 48493795), (530, 38795036), (532, 38649190), (665, 30919352), (742, 27710740), (760, 27054433), (1007, 20418440), (1060, 19397518), (1064, 19324595), (1330, 15459676), (1484, 13855370), (1855, 11084296), (2014, 10209220), (2120, 9698759), (2660, 7729838), (2968, 6927685), (3710, 5542148), (4028, 5104610), (5035, 4083688), (5320, 3864919), (7049, 2916920), (7420, 2771074), (8056, 2552305), (10070, 2041844), (14098, 1458460), (14840, 1385537), (20140, 1020922), (28196, 729230), (35245, 583384), (40280, 510461), (56392, 364615), (70490, 291692), (72923, 281960), (140980, 145846)]