78240400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{27943}}^1$

素因数の和:27968

約数の個数: 60

約数和(自身を含む): 214833472

約数和(自身を除く): 136593072

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, 27943, 55886, 111772, 139715, 195601, 223544, 279430, 391202, 447088, 558860, 698575, 782404, 978005, 1117720, 1397150, 1564808, 1956010, 2235440, 2794300, 3129616, 3912020, 4890025, 5588600, 7824040, 9780050, 11177200, 15648080, 19560100, 39120200, 78240400]

約数ペア:

[(1, 78240400), (2, 39120200), (4, 19560100), (5, 15648080), (7, 11177200), (8, 9780050), (10, 7824040), (14, 5588600), (16, 4890025), (20, 3912020), (25, 3129616), (28, 2794300), (35, 2235440), (40, 1956010), (50, 1564808), (56, 1397150), (70, 1117720), (80, 978005), (100, 782404), (112, 698575), (140, 558860), (175, 447088), (200, 391202), (280, 279430), (350, 223544), (400, 195601), (560, 139715), (700, 111772), (1400, 55886), (2800, 27943)]