2099687080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1280297}}^1$

素因数の和:1280349

約数の個数: 32

約数和(自身を含む): 4839526440

約数和(自身を除く): 2739839360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1280297, 2560594, 5121188, 6401485, 10242376, 12802970, 25605940, 51211880, 52492177, 104984354, 209968708, 262460885, 419937416, 524921770, 1049843540, 2099687080]

約数ペア:

[(1, 2099687080), (2, 1049843540), (4, 524921770), (5, 419937416), (8, 262460885), (10, 209968708), (20, 104984354), (40, 52492177), (41, 51211880), (82, 25605940), (164, 12802970), (205, 10242376), (328, 6401485), (410, 5121188), (820, 2560594), (1640, 1280297)]