38251880

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^2\times {\mathrm{257}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 87841260

約数和(自身を除く): 49589380

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 257, 305, 488, 514, 610, 1028, 1220, 1285, 2056, 2440, 2570, 3721, 5140, 7442, 10280, 14884, 15677, 18605, 29768, 31354, 37210, 62708, 74420, 78385, 125416, 148840, 156770, 313540, 627080, 956297, 1912594, 3825188, 4781485, 7650376, 9562970, 19125940, 38251880]

約数ペア:

[(1, 38251880), (2, 19125940), (4, 9562970), (5, 7650376), (8, 4781485), (10, 3825188), (20, 1912594), (40, 956297), (61, 627080), (122, 313540), (244, 156770), (257, 148840), (305, 125416), (488, 78385), (514, 74420), (610, 62708), (1028, 37210), (1220, 31354), (1285, 29768), (2056, 18605), (2440, 15677), (2570, 14884), (3721, 10280), (5140, 7442)]