397578724

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{449}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 749952000

約数和(自身を除く): 352373276

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 191, 244, 382, 449, 764, 898, 1159, 1796, 2318, 3629, 4636, 7258, 8531, 11651, 14516, 17062, 23302, 27389, 34124, 46604, 54778, 85759, 109556, 171518, 221369, 343036, 442738, 520391, 885476, 1040782, 1629421, 2081564, 3258842, 5231299, 6517684, 10462598, 20925196, 99394681, 198789362, 397578724]

約数ペア:

[(1, 397578724), (2, 198789362), (4, 99394681), (19, 20925196), (38, 10462598), (61, 6517684), (76, 5231299), (122, 3258842), (191, 2081564), (244, 1629421), (382, 1040782), (449, 885476), (764, 520391), (898, 442738), (1159, 343036), (1796, 221369), (2318, 171518), (3629, 109556), (4636, 85759), (7258, 54778), (8531, 46604), (11651, 34124), (14516, 27389), (17062, 23302)]