12540440

素因数分解:

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

素因数の和:2624

約数の個数: 48

約数和(自身を含む): 31026240

約数和(自身を除く): 18485800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 2591, 4840, 5182, 10364, 12955, 20728, 25910, 28501, 51820, 57002, 103640, 114004, 142505, 228008, 285010, 313511, 570020, 627022, 1140040, 1254044, 1567555, 2508088, 3135110, 6270220, 12540440]

約数ペア:

[(1, 12540440), (2, 6270220), (4, 3135110), (5, 2508088), (8, 1567555), (10, 1254044), (11, 1140040), (20, 627022), (22, 570020), (40, 313511), (44, 285010), (55, 228008), (88, 142505), (110, 114004), (121, 103640), (220, 57002), (242, 51820), (440, 28501), (484, 25910), (605, 20728), (968, 12955), (1210, 10364), (2420, 5182), (2591, 4840)]