19858888367080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1427}}^1\times {\mathrm{76819}}^1$

素因数の和:78911

約数の個数: 128

約数和(自身を含む): 51181146777600

約数和(自身を除く): 31322258410520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 647, 1294, 1427, 2588, 2854, 3235, 4529, 5176, 5708, 6470, 7135, 9058, 9989, 11416, 12940, 14270, 18116, 19978, 22645, 25880, 28540, 36232, 39956, 45290, 49945, 57080, 76819, 79912, 90580, 99890, 153638, 181160, 199780, 307276, 384095, 399560, 537733, 614552, 768190, 923269, 1075466, 1536380, 1846538, 2150932, 2688665, 3072760, 3693076, 4301864, 4616345, 5377330, 6462883, 7386152, 9232690, 10754660, 12925766, 18465380, 21509320, 25851532, 32314415, 36930760, 49701893, 51703064, 64628830, 99403786, 109620713, 129257660, 198807572, 219241426, 248509465, 258515320, 347913251, 397615144, 438482852, 497018930, 548103565, 695826502, 767344991, 876965704, 994037860, 1096207130, 1391653004, 1534689982, 1739566255, 1988075720, 2192414260, 2783306008, 3069379964, 3479132510, 3836724955, 4384828520, 6138759928, 6958265020, 7673449910, 13916530040, 15346899820, 30693799640, 70924601311, 141849202622, 283698405244, 354623006555, 496472209177, 567396810488, 709246013110, 992944418354, 1418492026220, 1985888836708, 2482361045885, 2836984052440, 3971777673416, 4964722091770, 9929444183540, 19858888367080]

約数ペア:

[(1, 19858888367080), (2, 9929444183540), (4, 4964722091770), (5, 3971777673416), (7, 2836984052440), (8, 2482361045885), (10, 1985888836708), (14, 1418492026220), (20, 992944418354), (28, 709246013110), (35, 567396810488), (40, 496472209177), (56, 354623006555), (70, 283698405244), (140, 141849202622), (280, 70924601311), (647, 30693799640), (1294, 15346899820), (1427, 13916530040), (2588, 7673449910), (2854, 6958265020), (3235, 6138759928), (4529, 4384828520), (5176, 3836724955), (5708, 3479132510), (6470, 3069379964), (7135, 2783306008), (9058, 2192414260), (9989, 1988075720), (11416, 1739566255), (12940, 1534689982), (14270, 1391653004), (18116, 1096207130), (19978, 994037860), (22645, 876965704), (25880, 767344991), (28540, 695826502), (36232, 548103565), (39956, 497018930), (45290, 438482852), (49945, 397615144), (57080, 347913251), (76819, 258515320), (79912, 248509465), (90580, 219241426), (99890, 198807572), (153638, 129257660), (181160, 109620713), (199780, 99403786), (307276, 64628830), (384095, 51703064), (399560, 49701893), (537733, 36930760), (614552, 32314415), (768190, 25851532), (923269, 21509320), (1075466, 18465380), (1536380, 12925766), (1846538, 10754660), (2150932, 9232690), (2688665, 7386152), (3072760, 6462883), (3693076, 5377330), (4301864, 4616345)]