394319140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{2441}}^1$

素因数の和:2688

約数の個数: 48

約数和(自身を含む): 852922224

約数和(自身を除く): 458603084

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 197, 205, 394, 410, 788, 820, 985, 1970, 2441, 3940, 4882, 8077, 9764, 12205, 16154, 24410, 32308, 40385, 48820, 80770, 100081, 161540, 200162, 400324, 480877, 500405, 961754, 1000810, 1923508, 2001620, 2404385, 4808770, 9617540, 19715957, 39431914, 78863828, 98579785, 197159570, 394319140]

約数ペア:

[(1, 394319140), (2, 197159570), (4, 98579785), (5, 78863828), (10, 39431914), (20, 19715957), (41, 9617540), (82, 4808770), (164, 2404385), (197, 2001620), (205, 1923508), (394, 1000810), (410, 961754), (788, 500405), (820, 480877), (985, 400324), (1970, 200162), (2441, 161540), (3940, 100081), (4882, 80770), (8077, 48820), (9764, 40385), (12205, 32308), (16154, 24410)]