40172720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3119}}^1$

素因数の和:3162

約数の個数: 80

約数和(自身を含む): 111421440

約数和(自身を除く): 71248720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3119, 3220, 6238, 6440, 12476, 12880, 15595, 21833, 24952, 31190, 43666, 49904, 62380, 71737, 87332, 109165, 124760, 143474, 174664, 218330, 249520, 286948, 349328, 358685, 436660, 502159, 573896, 717370, 873320, 1004318, 1147792, 1434740, 1746640, 2008636, 2510795, 2869480, 4017272, 5021590, 5738960, 8034544, 10043180, 20086360, 40172720]

約数ペア:

[(1, 40172720), (2, 20086360), (4, 10043180), (5, 8034544), (7, 5738960), (8, 5021590), (10, 4017272), (14, 2869480), (16, 2510795), (20, 2008636), (23, 1746640), (28, 1434740), (35, 1147792), (40, 1004318), (46, 873320), (56, 717370), (70, 573896), (80, 502159), (92, 436660), (112, 358685), (115, 349328), (140, 286948), (161, 249520), (184, 218330), (230, 174664), (280, 143474), (322, 124760), (368, 109165), (460, 87332), (560, 71737), (644, 62380), (805, 49904), (920, 43666), (1288, 31190), (1610, 24952), (1840, 21833), (2576, 15595), (3119, 12880), (3220, 12476), (6238, 6440)]