212706305

素因数分解:

$5^1\times 7^3\times {\mathrm{73}}^1\times {\mathrm{1699}}^1$

素因数の和:1798

約数の個数: 32

約数和(自身を含む): 301920000

約数和(自身を除く): 89213695

約数列:

[1, 5, 7, 35, 49, 73, 245, 343, 365, 511, 1699, 1715, 2555, 3577, 8495, 11893, 17885, 25039, 59465, 83251, 124027, 125195, 416255, 582757, 620135, 868189, 2913785, 4340945, 6077323, 30386615, 42541261, 212706305]

約数ペア:

[(1, 212706305), (5, 42541261), (7, 30386615), (35, 6077323), (49, 4340945), (73, 2913785), (245, 868189), (343, 620135), (365, 582757), (511, 416255), (1699, 125195), (1715, 124027), (2555, 83251), (3577, 59465), (8495, 25039), (11893, 17885)]