161567260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{1093}}^1$

素因数の和:1510

約数の個数: 48

約数和(自身を含む): 358394400

約数和(自身を除く): 196827140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 389, 778, 1093, 1556, 1945, 2186, 3890, 4372, 5465, 7391, 7780, 10930, 14782, 20767, 21860, 29564, 36955, 41534, 73910, 83068, 103835, 147820, 207670, 415340, 425177, 850354, 1700708, 2125885, 4251770, 8078363, 8503540, 16156726, 32313452, 40391815, 80783630, 161567260]

約数ペア:

[(1, 161567260), (2, 80783630), (4, 40391815), (5, 32313452), (10, 16156726), (19, 8503540), (20, 8078363), (38, 4251770), (76, 2125885), (95, 1700708), (190, 850354), (380, 425177), (389, 415340), (778, 207670), (1093, 147820), (1556, 103835), (1945, 83068), (2186, 73910), (3890, 41534), (4372, 36955), (5465, 29564), (7391, 21860), (7780, 20767), (10930, 14782)]