28155120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{16759}}^1$

素因数の和:16782

約数の個数: 80

約数和(自身を含む): 99755520

約数和(自身を除く): 71600400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 16759, 33518, 50277, 67036, 83795, 100554, 117313, 134072, 167590, 201108, 234626, 251385, 268144, 335180, 351939, 402216, 469252, 502770, 586565, 670360, 703878, 804432, 938504, 1005540, 1173130, 1340720, 1407756, 1759695, 1877008, 2011080, 2346260, 2815512, 3519390, 4022160, 4692520, 5631024, 7038780, 9385040, 14077560, 28155120]

約数ペア:

[(1, 28155120), (2, 14077560), (3, 9385040), (4, 7038780), (5, 5631024), (6, 4692520), (7, 4022160), (8, 3519390), (10, 2815512), (12, 2346260), (14, 2011080), (15, 1877008), (16, 1759695), (20, 1407756), (21, 1340720), (24, 1173130), (28, 1005540), (30, 938504), (35, 804432), (40, 703878), (42, 670360), (48, 586565), (56, 502770), (60, 469252), (70, 402216), (80, 351939), (84, 335180), (105, 268144), (112, 251385), (120, 234626), (140, 201108), (168, 167590), (210, 134072), (240, 117313), (280, 100554), (336, 83795), (420, 67036), (560, 50277), (840, 33518), (1680, 16759)]