2781100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 7187040

約数和(自身を除く): 4405940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 29, 35, 50, 58, 70, 100, 116, 137, 140, 145, 175, 203, 274, 290, 350, 406, 548, 580, 685, 700, 725, 812, 959, 1015, 1370, 1450, 1918, 2030, 2740, 2900, 3425, 3836, 3973, 4060, 4795, 5075, 6850, 7946, 9590, 10150, 13700, 15892, 19180, 19865, 20300, 23975, 27811, 39730, 47950, 55622, 79460, 95900, 99325, 111244, 139055, 198650, 278110, 397300, 556220, 695275, 1390550, 2781100]

約数ペア:

[(1, 2781100), (2, 1390550), (4, 695275), (5, 556220), (7, 397300), (10, 278110), (14, 198650), (20, 139055), (25, 111244), (28, 99325), (29, 95900), (35, 79460), (50, 55622), (58, 47950), (70, 39730), (100, 27811), (116, 23975), (137, 20300), (140, 19865), (145, 19180), (175, 15892), (203, 13700), (274, 10150), (290, 9590), (350, 7946), (406, 6850), (548, 5075), (580, 4795), (685, 4060), (700, 3973), (725, 3836), (812, 3425), (959, 2900), (1015, 2740), (1370, 2030), (1450, 1918)]