660848540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{15727}}^1$

素因数の和:15938

約数の個数: 48

約数和(自身を含む): 1521967104

約数和(自身を除く): 861118564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 382, 764, 955, 1910, 2101, 3820, 4202, 8404, 10505, 15727, 21010, 31454, 42020, 62908, 78635, 157270, 172997, 314540, 345994, 691988, 864985, 1729970, 3003857, 3459940, 6007714, 12015428, 15019285, 30038570, 33042427, 60077140, 66084854, 132169708, 165212135, 330424270, 660848540]

約数ペア:

[(1, 660848540), (2, 330424270), (4, 165212135), (5, 132169708), (10, 66084854), (11, 60077140), (20, 33042427), (22, 30038570), (44, 15019285), (55, 12015428), (110, 6007714), (191, 3459940), (220, 3003857), (382, 1729970), (764, 864985), (955, 691988), (1910, 345994), (2101, 314540), (3820, 172997), (4202, 157270), (8404, 78635), (10505, 62908), (15727, 42020), (21010, 31454)]