20512550928

素因数分解:

$2^4\times 3^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{30553}}^1$

素因数の和:30832

約数の個数: 80

約数和(自身を含む): 54011650176

約数和(自身を除く): 33499099248

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 71, 142, 197, 213, 284, 394, 426, 568, 591, 788, 852, 1136, 1182, 1576, 1704, 2364, 3152, 3408, 4728, 9456, 13987, 27974, 30553, 41961, 55948, 61106, 83922, 91659, 111896, 122212, 167844, 183318, 223792, 244424, 335688, 366636, 488848, 671376, 733272, 1466544, 2169263, 4338526, 6018941, 6507789, 8677052, 12037882, 13015578, 17354104, 18056823, 24075764, 26031156, 34708208, 36113646, 48151528, 52062312, 72227292, 96303056, 104124624, 144454584, 288909168, 427344811, 854689622, 1282034433, 1709379244, 2564068866, 3418758488, 5128137732, 6837516976, 10256275464, 20512550928]

約数ペア:

[(1, 20512550928), (2, 10256275464), (3, 6837516976), (4, 5128137732), (6, 3418758488), (8, 2564068866), (12, 1709379244), (16, 1282034433), (24, 854689622), (48, 427344811), (71, 288909168), (142, 144454584), (197, 104124624), (213, 96303056), (284, 72227292), (394, 52062312), (426, 48151528), (568, 36113646), (591, 34708208), (788, 26031156), (852, 24075764), (1136, 18056823), (1182, 17354104), (1576, 13015578), (1704, 12037882), (2364, 8677052), (3152, 6507789), (3408, 6018941), (4728, 4338526), (9456, 2169263), (13987, 1466544), (27974, 733272), (30553, 671376), (41961, 488848), (55948, 366636), (61106, 335688), (83922, 244424), (91659, 223792), (111896, 183318), (122212, 167844)]