399422012

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{1973}}^1$

素因数の和:2138

約数の個数: 48

約数和(自身を含む): 787957632

約数和(自身を除く): 388535620

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 107, 172, 214, 428, 473, 946, 1177, 1892, 1973, 2354, 3946, 4601, 4708, 7892, 9202, 18404, 21703, 43406, 50611, 84839, 86812, 101222, 169678, 202444, 211111, 339356, 422222, 844444, 933229, 1866458, 2322221, 3732916, 4644442, 9077773, 9288884, 18155546, 36311092, 99855503, 199711006, 399422012]

約数ペア:

[(1, 399422012), (2, 199711006), (4, 99855503), (11, 36311092), (22, 18155546), (43, 9288884), (44, 9077773), (86, 4644442), (107, 3732916), (172, 2322221), (214, 1866458), (428, 933229), (473, 844444), (946, 422222), (1177, 339356), (1892, 211111), (1973, 202444), (2354, 169678), (3946, 101222), (4601, 86812), (4708, 84839), (7892, 50611), (9202, 43406), (18404, 21703)]