31781340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{461}}^1$

素因数の和:859

約数の個数: 72

約数和(自身を含む): 96864768

約数和(自身を除く): 65083428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 383, 461, 766, 922, 1149, 1383, 1532, 1844, 1915, 2298, 2305, 2766, 3447, 3830, 4149, 4596, 4610, 5532, 5745, 6894, 6915, 7660, 8298, 9220, 11490, 13788, 13830, 16596, 17235, 20745, 22980, 27660, 34470, 41490, 68940, 82980, 176563, 353126, 529689, 706252, 882815, 1059378, 1589067, 1765630, 2118756, 2648445, 3178134, 3531260, 5296890, 6356268, 7945335, 10593780, 15890670, 31781340]

約数ペア:

[(1, 31781340), (2, 15890670), (3, 10593780), (4, 7945335), (5, 6356268), (6, 5296890), (9, 3531260), (10, 3178134), (12, 2648445), (15, 2118756), (18, 1765630), (20, 1589067), (30, 1059378), (36, 882815), (45, 706252), (60, 529689), (90, 353126), (180, 176563), (383, 82980), (461, 68940), (766, 41490), (922, 34470), (1149, 27660), (1383, 22980), (1532, 20745), (1844, 17235), (1915, 16596), (2298, 13830), (2305, 13788), (2766, 11490), (3447, 9220), (3830, 8298), (4149, 7660), (4596, 6915), (4610, 6894), (5532, 5745)]