20147347720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1\times {\mathrm{66161}}^1$

素因数の和:66526

約数の個数: 64

約数和(自身を含む): 47446093440

約数和(自身を除く): 27298745720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 331, 460, 662, 920, 1324, 1655, 2648, 3310, 6620, 7613, 13240, 15226, 30452, 38065, 60904, 66161, 76130, 132322, 152260, 264644, 304520, 330805, 529288, 661610, 1323220, 1521703, 2646440, 3043406, 6086812, 7608515, 12173624, 15217030, 21899291, 30434060, 43798582, 60868120, 87597164, 109496455, 175194328, 218992910, 437985820, 503683693, 875971640, 1007367386, 2014734772, 2518418465, 4029469544, 5036836930, 10073673860, 20147347720]

約数ペア:

[(1, 20147347720), (2, 10073673860), (4, 5036836930), (5, 4029469544), (8, 2518418465), (10, 2014734772), (20, 1007367386), (23, 875971640), (40, 503683693), (46, 437985820), (92, 218992910), (115, 175194328), (184, 109496455), (230, 87597164), (331, 60868120), (460, 43798582), (662, 30434060), (920, 21899291), (1324, 15217030), (1655, 12173624), (2648, 7608515), (3310, 6086812), (6620, 3043406), (7613, 2646440), (13240, 1521703), (15226, 1323220), (30452, 661610), (38065, 529288), (60904, 330805), (66161, 304520), (76130, 264644), (132322, 152260)]