18909728880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11255791}}^1$

素因数の和:11255814

約数の個数: 80

約数和(自身を含む): 66994473984

約数和(自身を除く): 48084745104

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11255791, 22511582, 33767373, 45023164, 56278955, 67534746, 78790537, 90046328, 112557910, 135069492, 157581074, 168836865, 180092656, 225115820, 236371611, 270138984, 315162148, 337673730, 393952685, 450231640, 472743222, 540277968, 630324296, 675347460, 787905370, 900463280, 945486444, 1181858055, 1260648592, 1350694920, 1575810740, 1890972888, 2363716110, 2701389840, 3151621480, 3781945776, 4727432220, 6303242960, 9454864440, 18909728880]

約数ペア:

[(1, 18909728880), (2, 9454864440), (3, 6303242960), (4, 4727432220), (5, 3781945776), (6, 3151621480), (7, 2701389840), (8, 2363716110), (10, 1890972888), (12, 1575810740), (14, 1350694920), (15, 1260648592), (16, 1181858055), (20, 945486444), (21, 900463280), (24, 787905370), (28, 675347460), (30, 630324296), (35, 540277968), (40, 472743222), (42, 450231640), (48, 393952685), (56, 337673730), (60, 315162148), (70, 270138984), (80, 236371611), (84, 225115820), (105, 180092656), (112, 168836865), (120, 157581074), (140, 135069492), (168, 112557910), (210, 90046328), (240, 78790537), (280, 67534746), (336, 56278955), (420, 45023164), (560, 33767373), (840, 22511582), (1680, 11255791)]