260904920

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1\times {\mathrm{449}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 599400000

約数和(自身を除く): 338495080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 199, 292, 365, 398, 449, 584, 730, 796, 898, 995, 1460, 1592, 1796, 1990, 2245, 2920, 3592, 3980, 4490, 7960, 8980, 14527, 17960, 29054, 32777, 58108, 65554, 72635, 89351, 116216, 131108, 145270, 163885, 178702, 262216, 290540, 327770, 357404, 446755, 581080, 655540, 714808, 893510, 1311080, 1787020, 3574040, 6522623, 13045246, 26090492, 32613115, 52180984, 65226230, 130452460, 260904920]

約数ペア:

[(1, 260904920), (2, 130452460), (4, 65226230), (5, 52180984), (8, 32613115), (10, 26090492), (20, 13045246), (40, 6522623), (73, 3574040), (146, 1787020), (199, 1311080), (292, 893510), (365, 714808), (398, 655540), (449, 581080), (584, 446755), (730, 357404), (796, 327770), (898, 290540), (995, 262216), (1460, 178702), (1592, 163885), (1796, 145270), (1990, 131108), (2245, 116216), (2920, 89351), (3592, 72635), (3980, 65554), (4490, 58108), (7960, 32777), (8980, 29054), (14527, 17960)]