20105308520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{173741}}^1$

素因数の和:174026

約数の個数: 64

約数和(自身を含む): 49537319040

約数和(自身を除く): 29432010520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 263, 440, 526, 1052, 1315, 2104, 2630, 2893, 5260, 5786, 10520, 11572, 14465, 23144, 28930, 57860, 115720, 173741, 347482, 694964, 868705, 1389928, 1737410, 1911151, 3474820, 3822302, 6949640, 7644604, 9555755, 15289208, 19111510, 38223020, 45693883, 76446040, 91387766, 182775532, 228469415, 365551064, 456938830, 502632713, 913877660, 1005265426, 1827755320, 2010530852, 2513163565, 4021061704, 5026327130, 10052654260, 20105308520]

約数ペア:

[(1, 20105308520), (2, 10052654260), (4, 5026327130), (5, 4021061704), (8, 2513163565), (10, 2010530852), (11, 1827755320), (20, 1005265426), (22, 913877660), (40, 502632713), (44, 456938830), (55, 365551064), (88, 228469415), (110, 182775532), (220, 91387766), (263, 76446040), (440, 45693883), (526, 38223020), (1052, 19111510), (1315, 15289208), (2104, 9555755), (2630, 7644604), (2893, 6949640), (5260, 3822302), (5786, 3474820), (10520, 1911151), (11572, 1737410), (14465, 1389928), (23144, 868705), (28930, 694964), (57860, 347482), (115720, 173741)]