20180836088

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{220681}}^1$

素因数の和:220788

約数の個数: 64

約数和(自身を含む): 45760619520

約数和(自身を除く): 25579783432

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 71, 92, 142, 161, 184, 284, 322, 497, 568, 644, 994, 1288, 1633, 1988, 3266, 3976, 6532, 11431, 13064, 22862, 45724, 91448, 220681, 441362, 882724, 1544767, 1765448, 3089534, 5075663, 6179068, 10151326, 12358136, 15668351, 20302652, 31336702, 35529641, 40605304, 62673404, 71059282, 109678457, 125346808, 142118564, 219356914, 284237128, 360372073, 438713828, 720744146, 877427656, 1441488292, 2522604511, 2882976584, 5045209022, 10090418044, 20180836088]

約数ペア:

[(1, 20180836088), (2, 10090418044), (4, 5045209022), (7, 2882976584), (8, 2522604511), (14, 1441488292), (23, 877427656), (28, 720744146), (46, 438713828), (56, 360372073), (71, 284237128), (92, 219356914), (142, 142118564), (161, 125346808), (184, 109678457), (284, 71059282), (322, 62673404), (497, 40605304), (568, 35529641), (644, 31336702), (994, 20302652), (1288, 15668351), (1633, 12358136), (1988, 10151326), (3266, 6179068), (3976, 5075663), (6532, 3089534), (11431, 1765448), (13064, 1544767), (22862, 882724), (45724, 441362), (91448, 220681)]