7980280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2591}}^1$

素因数の和:2620

約数の個数: 64

約数和(自身を含む): 22394880

約数和(自身を除く): 14414600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 2591, 3080, 5182, 10364, 12955, 18137, 20728, 25910, 28501, 36274, 51820, 57002, 72548, 90685, 103640, 114004, 142505, 145096, 181370, 199507, 228008, 285010, 362740, 399014, 570020, 725480, 798028, 997535, 1140040, 1596056, 1995070, 3990140, 7980280]

約数ペア:

[(1, 7980280), (2, 3990140), (4, 1995070), (5, 1596056), (7, 1140040), (8, 997535), (10, 798028), (11, 725480), (14, 570020), (20, 399014), (22, 362740), (28, 285010), (35, 228008), (40, 199507), (44, 181370), (55, 145096), (56, 142505), (70, 114004), (77, 103640), (88, 90685), (110, 72548), (140, 57002), (154, 51820), (220, 36274), (280, 28501), (308, 25910), (385, 20728), (440, 18137), (616, 12955), (770, 10364), (1540, 5182), (2591, 3080)]