255851596

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 626049088

約数和(自身を除く): 370197492

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 37, 44, 52, 74, 77, 91, 121, 143, 148, 154, 157, 182, 242, 259, 286, 308, 314, 364, 407, 481, 484, 518, 572, 628, 814, 847, 962, 1001, 1036, 1099, 1573, 1628, 1694, 1727, 1924, 2002, 2041, 2198, 2849, 3146, 3367, 3388, 3454, 4004, 4082, 4396, 4477, 5291, 5698, 5809, 6292, 6734, 6908, 8164, 8954, 10582, 11011, 11396, 11618, 12089, 13468, 14287, 17908, 18997, 21164, 22022, 22451, 23236, 24178, 28574, 31339, 37037, 37994, 40663, 44044, 44902, 48356, 57148, 58201, 62678, 63899, 74074, 75517, 75988, 81326, 89804, 116402, 125356, 127798, 132979, 148148, 151034, 157157, 162652, 232804, 246961, 255596, 265958, 302068, 314314, 407407, 447293, 493922, 528619, 531916, 628628, 702889, 814814, 830687, 894586, 987844, 1057238, 1405778, 1629628, 1661374, 1728727, 1789172, 2114476, 2811556, 3322748, 3457454, 4920223, 5814809, 6914908, 9137557, 9840446, 11629618, 18275114, 19680892, 23259236, 36550228, 63962899, 127925798, 255851596]

約数ペア:

[(1, 255851596), (2, 127925798), (4, 63962899), (7, 36550228), (11, 23259236), (13, 19680892), (14, 18275114), (22, 11629618), (26, 9840446), (28, 9137557), (37, 6914908), (44, 5814809), (52, 4920223), (74, 3457454), (77, 3322748), (91, 2811556), (121, 2114476), (143, 1789172), (148, 1728727), (154, 1661374), (157, 1629628), (182, 1405778), (242, 1057238), (259, 987844), (286, 894586), (308, 830687), (314, 814814), (364, 702889), (407, 628628), (481, 531916), (484, 528619), (518, 493922), (572, 447293), (628, 407407), (814, 314314), (847, 302068), (962, 265958), (1001, 255596), (1036, 246961), (1099, 232804), (1573, 162652), (1628, 157157), (1694, 151034), (1727, 148148), (1924, 132979), (2002, 127798), (2041, 125356), (2198, 116402), (2849, 89804), (3146, 81326), (3367, 75988), (3388, 75517), (3454, 74074), (4004, 63899), (4082, 62678), (4396, 58201), (4477, 57148), (5291, 48356), (5698, 44902), (5809, 44044), (6292, 40663), (6734, 37994), (6908, 37037), (8164, 31339), (8954, 28574), (10582, 24178), (11011, 23236), (11396, 22451), (11618, 22022), (12089, 21164), (13468, 18997), (14287, 17908)]