40680840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1289}}^1$

素因数の和:1566

約数の個数: 64

約数和(自身を含む): 122601600

約数和(自身を除く): 81920760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 263, 526, 789, 1052, 1289, 1315, 1578, 2104, 2578, 2630, 3156, 3867, 3945, 5156, 5260, 6312, 6445, 7734, 7890, 10312, 10520, 12890, 15468, 15780, 19335, 25780, 30936, 31560, 38670, 51560, 77340, 154680, 339007, 678014, 1017021, 1356028, 1695035, 2034042, 2712056, 3390070, 4068084, 5085105, 6780140, 8136168, 10170210, 13560280, 20340420, 40680840]

約数ペア:

[(1, 40680840), (2, 20340420), (3, 13560280), (4, 10170210), (5, 8136168), (6, 6780140), (8, 5085105), (10, 4068084), (12, 3390070), (15, 2712056), (20, 2034042), (24, 1695035), (30, 1356028), (40, 1017021), (60, 678014), (120, 339007), (263, 154680), (526, 77340), (789, 51560), (1052, 38670), (1289, 31560), (1315, 30936), (1578, 25780), (2104, 19335), (2578, 15780), (2630, 15468), (3156, 12890), (3867, 10520), (3945, 10312), (5156, 7890), (5260, 7734), (6312, 6445)]