19720400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{7043}}^1$

素因数の和:7068

約数の個数: 60

約数和(自身を含む): 54154272

約数和(自身を除く): 34433872

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, 7043, 14086, 28172, 35215, 49301, 56344, 70430, 98602, 112688, 140860, 176075, 197204, 246505, 281720, 352150, 394408, 493010, 563440, 704300, 788816, 986020, 1232525, 1408600, 1972040, 2465050, 2817200, 3944080, 4930100, 9860200, 19720400]

約数ペア:

[(1, 19720400), (2, 9860200), (4, 4930100), (5, 3944080), (7, 2817200), (8, 2465050), (10, 1972040), (14, 1408600), (16, 1232525), (20, 986020), (25, 788816), (28, 704300), (35, 563440), (40, 493010), (50, 394408), (56, 352150), (70, 281720), (80, 246505), (100, 197204), (112, 176075), (140, 140860), (175, 112688), (200, 98602), (280, 70430), (350, 56344), (400, 49301), (560, 35215), (700, 28172), (1400, 14086), (2800, 7043)]