20512247316

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1\times {\mathrm{12641}}^1$

素因数の和:13325

約数の個数: 96

約数和(自身を含む): 55050347520

約数和(自身を除く): 34538100204

約数列:

[1, 2, 3, 4, 6, 11, 12, 19, 22, 33, 38, 44, 57, 66, 76, 114, 132, 209, 228, 418, 627, 647, 836, 1254, 1294, 1941, 2508, 2588, 3882, 7117, 7764, 12293, 12641, 14234, 21351, 24586, 25282, 28468, 36879, 37923, 42702, 49172, 50564, 73758, 75846, 85404, 135223, 139051, 147516, 151692, 240179, 270446, 278102, 405669, 417153, 480358, 540892, 556204, 720537, 811338, 834306, 960716, 1441074, 1622676, 1668612, 2641969, 2882148, 5283938, 7925907, 8178727, 10567876, 15851814, 16357454, 24536181, 31703628, 32714908, 49072362, 89965997, 98144724, 155395813, 179931994, 269897991, 310791626, 359863988, 466187439, 539795982, 621583252, 932374878, 1079591964, 1709353943, 1864749756, 3418707886, 5128061829, 6837415772, 10256123658, 20512247316]

約数ペア:

[(1, 20512247316), (2, 10256123658), (3, 6837415772), (4, 5128061829), (6, 3418707886), (11, 1864749756), (12, 1709353943), (19, 1079591964), (22, 932374878), (33, 621583252), (38, 539795982), (44, 466187439), (57, 359863988), (66, 310791626), (76, 269897991), (114, 179931994), (132, 155395813), (209, 98144724), (228, 89965997), (418, 49072362), (627, 32714908), (647, 31703628), (836, 24536181), (1254, 16357454), (1294, 15851814), (1941, 10567876), (2508, 8178727), (2588, 7925907), (3882, 5283938), (7117, 2882148), (7764, 2641969), (12293, 1668612), (12641, 1622676), (14234, 1441074), (21351, 960716), (24586, 834306), (25282, 811338), (28468, 720537), (36879, 556204), (37923, 540892), (42702, 480358), (49172, 417153), (50564, 405669), (73758, 278102), (75846, 270446), (85404, 240179), (135223, 151692), (139051, 147516)]