312090660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{247691}}^1$

素因数の和:247713

約数の個数: 72

約数和(自身を含む): 1081918656

約数和(自身を除く): 769827996

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 247691, 495382, 743073, 990764, 1238455, 1486146, 1733837, 2229219, 2476910, 2972292, 3467674, 3715365, 4458438, 4953820, 5201511, 6935348, 7430730, 8669185, 8916876, 10403022, 11146095, 14861460, 15604533, 17338370, 20806044, 22292190, 26007555, 31209066, 34676740, 44584380, 52015110, 62418132, 78022665, 104030220, 156045330, 312090660]

約数ペア:

[(1, 312090660), (2, 156045330), (3, 104030220), (4, 78022665), (5, 62418132), (6, 52015110), (7, 44584380), (9, 34676740), (10, 31209066), (12, 26007555), (14, 22292190), (15, 20806044), (18, 17338370), (20, 15604533), (21, 14861460), (28, 11146095), (30, 10403022), (35, 8916876), (36, 8669185), (42, 7430730), (45, 6935348), (60, 5201511), (63, 4953820), (70, 4458438), (84, 3715365), (90, 3467674), (105, 2972292), (126, 2476910), (140, 2229219), (180, 1733837), (210, 1486146), (252, 1238455), (315, 990764), (420, 743073), (630, 495382), (1260, 247691)]