15120

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1$

素因数の和:29

約数の個数: 80

約数和(自身を含む): 59520

約数和(自身を除く): 44400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120]

約数ペア:

[(1, 15120), (2, 7560), (3, 5040), (4, 3780), (5, 3024), (6, 2520), (7, 2160), (8, 1890), (9, 1680), (10, 1512), (12, 1260), (14, 1080), (15, 1008), (16, 945), (18, 840), (20, 756), (21, 720), (24, 630), (27, 560), (28, 540), (30, 504), (35, 432), (36, 420), (40, 378), (42, 360), (45, 336), (48, 315), (54, 280), (56, 270), (60, 252), (63, 240), (70, 216), (72, 210), (80, 189), (84, 180), (90, 168), (105, 144), (108, 140), (112, 135), (120, 126)]