20196400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{7213}}^1$

素因数の和:7238

約数の個数: 60

約数和(自身を含む): 55461232

約数和(自身を除く): 35264832

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 7213, 14426, 28852, 36065, 50491, 57704, 72130, 100982, 115408, 144260, 180325, 201964, 252455, 288520, 360650, 403928, 504910, 577040, 721300, 807856, 1009820, 1262275, 1442600, 2019640, 2524550, 2885200, 4039280, 5049100, 10098200, 20196400]

約数ペア:

[(1, 20196400), (2, 10098200), (4, 5049100), (5, 4039280), (7, 2885200), (8, 2524550), (10, 2019640), (14, 1442600), (16, 1262275), (20, 1009820), (25, 807856), (28, 721300), (35, 577040), (40, 504910), (50, 403928), (56, 360650), (70, 288520), (80, 252455), (100, 201964), (112, 180325), (140, 144260), (175, 115408), (200, 100982), (280, 72130), (350, 57704), (400, 50491), (560, 36065), (700, 28852), (1400, 14426), (2800, 7213)]