20882368

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1321}}^1$

素因数の和:1365

約数の個数: 56

約数和(自身を含む): 47010320

約数和(自身を除く): 26127952

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 152, 208, 247, 304, 416, 494, 608, 832, 988, 1216, 1321, 1976, 2642, 3952, 5284, 7904, 10568, 15808, 17173, 21136, 25099, 34346, 42272, 50198, 68692, 84544, 100396, 137384, 200792, 274768, 326287, 401584, 549536, 652574, 803168, 1099072, 1305148, 1606336, 2610296, 5220592, 10441184, 20882368]

約数ペア:

[(1, 20882368), (2, 10441184), (4, 5220592), (8, 2610296), (13, 1606336), (16, 1305148), (19, 1099072), (26, 803168), (32, 652574), (38, 549536), (52, 401584), (64, 326287), (76, 274768), (104, 200792), (152, 137384), (208, 100396), (247, 84544), (304, 68692), (416, 50198), (494, 42272), (608, 34346), (832, 25099), (988, 21136), (1216, 17173), (1321, 15808), (1976, 10568), (2642, 7904), (3952, 5284)]