20215402564

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1\times {\mathrm{293}}^1$

素因数の和:618

約数の個数: 144

約数和(自身を含む): 44144593920

約数和(自身を除く): 23929191356

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 97, 98, 133, 191, 194, 196, 266, 293, 382, 388, 532, 586, 679, 764, 931, 1172, 1337, 1358, 1843, 1862, 2051, 2674, 2716, 3629, 3686, 3724, 4102, 4753, 5348, 5567, 7258, 7372, 8204, 9359, 9506, 11134, 12901, 14357, 14516, 18527, 18718, 19012, 22268, 25403, 25802, 28421, 28714, 37054, 37436, 38969, 50806, 51604, 55963, 56842, 57428, 74108, 77938, 90307, 101612, 111926, 113684, 129689, 155876, 177821, 180614, 198947, 223852, 259378, 272783, 352013, 355642, 361228, 391741, 397894, 518756, 539999, 545566, 704026, 711284, 783482, 795788, 907823, 1063297, 1079998, 1091132, 1392629, 1408052, 1566964, 1815646, 2126594, 2159996, 2464091, 2742187, 2785258, 3631292, 3779993, 4253188, 4928182, 5428411, 5484374, 5570516, 7443079, 7559986, 9856364, 10856822, 10968748, 14886158, 15119972, 17248637, 21713644, 26459951, 29772316, 34497274, 37998877, 52101553, 52919902, 68994548, 75997754, 103139809, 104203106, 105839804, 151995508, 206279618, 208406212, 265992139, 412559236, 531984278, 721978663, 1063968556, 1443957326, 2887914652, 5053850641, 10107701282, 20215402564]

約数ペア:

[(1, 20215402564), (2, 10107701282), (4, 5053850641), (7, 2887914652), (14, 1443957326), (19, 1063968556), (28, 721978663), (38, 531984278), (49, 412559236), (76, 265992139), (97, 208406212), (98, 206279618), (133, 151995508), (191, 105839804), (194, 104203106), (196, 103139809), (266, 75997754), (293, 68994548), (382, 52919902), (388, 52101553), (532, 37998877), (586, 34497274), (679, 29772316), (764, 26459951), (931, 21713644), (1172, 17248637), (1337, 15119972), (1358, 14886158), (1843, 10968748), (1862, 10856822), (2051, 9856364), (2674, 7559986), (2716, 7443079), (3629, 5570516), (3686, 5484374), (3724, 5428411), (4102, 4928182), (4753, 4253188), (5348, 3779993), (5567, 3631292), (7258, 2785258), (7372, 2742187), (8204, 2464091), (9359, 2159996), (9506, 2126594), (11134, 1815646), (12901, 1566964), (14357, 1408052), (14516, 1392629), (18527, 1091132), (18718, 1079998), (19012, 1063297), (22268, 907823), (25403, 795788), (25802, 783482), (28421, 711284), (28714, 704026), (37054, 545566), (37436, 539999), (38969, 518756), (50806, 397894), (51604, 391741), (55963, 361228), (56842, 355642), (57428, 352013), (74108, 272783), (77938, 259378), (90307, 223852), (101612, 198947), (111926, 180614), (113684, 177821), (129689, 155876)]