20712792316

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{409}}^1\times {\mathrm{2063}}^1$

素因数の和:2531

約数の個数: 72

約数和(自身を含む): 40624597440

約数和(自身を除く): 19911805124

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 361, 409, 646, 722, 818, 1292, 1444, 1636, 2063, 4126, 6137, 6953, 7771, 8252, 12274, 13906, 15542, 24548, 27812, 31084, 35071, 39197, 70142, 78394, 132107, 140284, 147649, 156788, 264214, 295298, 528428, 590596, 666349, 744743, 843767, 1332698, 1489486, 1687534, 2510033, 2665396, 2978972, 3375068, 5020066, 10040132, 12660631, 14344039, 16031573, 25321262, 28688078, 32063146, 50642524, 57376156, 64126292, 272536741, 304599887, 545073482, 609199774, 1090146964, 1218399548, 5178198079, 10356396158, 20712792316]

約数ペア:

[(1, 20712792316), (2, 10356396158), (4, 5178198079), (17, 1218399548), (19, 1090146964), (34, 609199774), (38, 545073482), (68, 304599887), (76, 272536741), (323, 64126292), (361, 57376156), (409, 50642524), (646, 32063146), (722, 28688078), (818, 25321262), (1292, 16031573), (1444, 14344039), (1636, 12660631), (2063, 10040132), (4126, 5020066), (6137, 3375068), (6953, 2978972), (7771, 2665396), (8252, 2510033), (12274, 1687534), (13906, 1489486), (15542, 1332698), (24548, 843767), (27812, 744743), (31084, 666349), (35071, 590596), (39197, 528428), (70142, 295298), (78394, 264214), (132107, 156788), (140284, 147649)]