339965860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{68819}}^1$

素因数の和:68860

約数の個数: 48

約数和(自身を含む): 809323200

約数和(自身を除く): 469357340

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 68819, 137638, 275276, 344095, 688190, 894647, 1307561, 1376380, 1789294, 2615122, 3578588, 4473235, 5230244, 6537805, 8946470, 13075610, 16998293, 17892940, 26151220, 33996586, 67993172, 84991465, 169982930, 339965860]

約数ペア:

[(1, 339965860), (2, 169982930), (4, 84991465), (5, 67993172), (10, 33996586), (13, 26151220), (19, 17892940), (20, 16998293), (26, 13075610), (38, 8946470), (52, 6537805), (65, 5230244), (76, 4473235), (95, 3578588), (130, 2615122), (190, 1789294), (247, 1376380), (260, 1307561), (380, 894647), (494, 688190), (988, 344095), (1235, 275276), (2470, 137638), (4940, 68819)]