19141520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:240

約数の個数: 80

約数和(自身を含む): 47354112

約数和(自身を除く): 28212592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 101, 103, 115, 184, 202, 206, 230, 368, 404, 412, 460, 505, 515, 808, 824, 920, 1010, 1030, 1616, 1648, 1840, 2020, 2060, 2323, 2369, 4040, 4120, 4646, 4738, 8080, 8240, 9292, 9476, 10403, 11615, 11845, 18584, 18952, 20806, 23230, 23690, 37168, 37904, 41612, 46460, 47380, 52015, 83224, 92920, 94760, 104030, 166448, 185840, 189520, 208060, 239269, 416120, 478538, 832240, 957076, 1196345, 1914152, 2392690, 3828304, 4785380, 9570760, 19141520]

約数ペア:

[(1, 19141520), (2, 9570760), (4, 4785380), (5, 3828304), (8, 2392690), (10, 1914152), (16, 1196345), (20, 957076), (23, 832240), (40, 478538), (46, 416120), (80, 239269), (92, 208060), (101, 189520), (103, 185840), (115, 166448), (184, 104030), (202, 94760), (206, 92920), (230, 83224), (368, 52015), (404, 47380), (412, 46460), (460, 41612), (505, 37904), (515, 37168), (808, 23690), (824, 23230), (920, 20806), (1010, 18952), (1030, 18584), (1616, 11845), (1648, 11615), (1840, 10403), (2020, 9476), (2060, 9292), (2323, 8240), (2369, 8080), (4040, 4738), (4120, 4646)]