20862608

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5279}}^1$

素因数の和:5319

約数の個数: 40

約数和(自身を含む): 45830400

約数和(自身を除く): 24967792

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 5279, 10558, 21116, 42232, 68627, 84464, 100301, 137254, 200602, 274508, 401204, 549016, 802408, 1098032, 1303913, 1604816, 2607826, 5215652, 10431304, 20862608]

約数ペア:

[(1, 20862608), (2, 10431304), (4, 5215652), (8, 2607826), (13, 1604816), (16, 1303913), (19, 1098032), (26, 802408), (38, 549016), (52, 401204), (76, 274508), (104, 200602), (152, 137254), (208, 100301), (247, 84464), (304, 68627), (494, 42232), (988, 21116), (1976, 10558), (3952, 5279)]