20446550360

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{509}}^1\times {\mathrm{4001}}^1$

素因数の和:4772

約数の個数: 64

約数和(自身を含む): 46290333600

約数和(自身を除く): 25843783240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 509, 1004, 1018, 1255, 2008, 2036, 2510, 2545, 4001, 4072, 5020, 5090, 8002, 10040, 10180, 16004, 20005, 20360, 32008, 40010, 80020, 127759, 160040, 255518, 511036, 638795, 1004251, 1022072, 1277590, 2008502, 2036509, 2555180, 4017004, 4073018, 5021255, 5110360, 8034008, 8146036, 10042510, 10182545, 16292072, 20085020, 20365090, 40170040, 40730180, 81460360, 511163759, 1022327518, 2044655036, 2555818795, 4089310072, 5111637590, 10223275180, 20446550360]

約数ペア:

[(1, 20446550360), (2, 10223275180), (4, 5111637590), (5, 4089310072), (8, 2555818795), (10, 2044655036), (20, 1022327518), (40, 511163759), (251, 81460360), (502, 40730180), (509, 40170040), (1004, 20365090), (1018, 20085020), (1255, 16292072), (2008, 10182545), (2036, 10042510), (2510, 8146036), (2545, 8034008), (4001, 5110360), (4072, 5021255), (5020, 4073018), (5090, 4017004), (8002, 2555180), (10040, 2036509), (10180, 2008502), (16004, 1277590), (20005, 1022072), (20360, 1004251), (32008, 638795), (40010, 511036), (80020, 255518), (127759, 160040)]