80120720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52711}}^1$

素因数の和:52743

約数の個数: 40

約数和(自身を含む): 196088640

約数和(自身を除く): 115967920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 52711, 105422, 210844, 263555, 421688, 527110, 843376, 1001509, 1054220, 2003018, 2108440, 4006036, 4216880, 5007545, 8012072, 10015090, 16024144, 20030180, 40060360, 80120720]

約数ペア:

[(1, 80120720), (2, 40060360), (4, 20030180), (5, 16024144), (8, 10015090), (10, 8012072), (16, 5007545), (19, 4216880), (20, 4006036), (38, 2108440), (40, 2003018), (76, 1054220), (80, 1001509), (95, 843376), (152, 527110), (190, 421688), (304, 263555), (380, 210844), (760, 105422), (1520, 52711)]