74808080

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1$

素因数の和:376

約数の個数: 80

約数和(自身を含む): 180940800

約数和(自身を除く): 106132720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 127, 148, 185, 199, 254, 296, 370, 398, 508, 592, 635, 740, 796, 995, 1016, 1270, 1480, 1592, 1990, 2032, 2540, 2960, 3184, 3980, 4699, 5080, 7363, 7960, 9398, 10160, 14726, 15920, 18796, 23495, 25273, 29452, 36815, 37592, 46990, 50546, 58904, 73630, 75184, 93980, 101092, 117808, 126365, 147260, 187960, 202184, 252730, 294520, 375920, 404368, 505460, 589040, 935101, 1010920, 1870202, 2021840, 3740404, 4675505, 7480808, 9351010, 14961616, 18702020, 37404040, 74808080]

約数ペア:

[(1, 74808080), (2, 37404040), (4, 18702020), (5, 14961616), (8, 9351010), (10, 7480808), (16, 4675505), (20, 3740404), (37, 2021840), (40, 1870202), (74, 1010920), (80, 935101), (127, 589040), (148, 505460), (185, 404368), (199, 375920), (254, 294520), (296, 252730), (370, 202184), (398, 187960), (508, 147260), (592, 126365), (635, 117808), (740, 101092), (796, 93980), (995, 75184), (1016, 73630), (1270, 58904), (1480, 50546), (1592, 46990), (1990, 37592), (2032, 36815), (2540, 29452), (2960, 25273), (3184, 23495), (3980, 18796), (4699, 15920), (5080, 14726), (7363, 10160), (7960, 9398)]