644510628

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:383

約数の個数: 144

約数和(自身を含む): 1799051520

約数和(自身を除く): 1154540892

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 61, 76, 108, 114, 122, 171, 183, 228, 244, 271, 342, 361, 366, 513, 542, 549, 684, 722, 732, 813, 1026, 1083, 1084, 1098, 1159, 1444, 1626, 1647, 2052, 2166, 2196, 2318, 2439, 3249, 3252, 3294, 3477, 4332, 4636, 4878, 5149, 6498, 6588, 6954, 7317, 9747, 9756, 10298, 10431, 12996, 13908, 14634, 15447, 16531, 19494, 20596, 20862, 22021, 29268, 30894, 31293, 33062, 38988, 41724, 44042, 46341, 49593, 61788, 62586, 66063, 66124, 88084, 92682, 97831, 99186, 125172, 132126, 139023, 148779, 185364, 195662, 198189, 198372, 264252, 278046, 293493, 297558, 314089, 391324, 396378, 446337, 556092, 586986, 594567, 595116, 628178, 792756, 880479, 892674, 942267, 1173972, 1189134, 1256356, 1760958, 1785348, 1884534, 2378268, 2641437, 2826801, 3521916, 3769068, 5282874, 5653602, 5967691, 8480403, 10565748, 11307204, 11935382, 16960806, 17903073, 23870764, 33921612, 35806146, 53709219, 71612292, 107418438, 161127657, 214836876, 322255314, 644510628]

約数ペア:

[(1, 644510628), (2, 322255314), (3, 214836876), (4, 161127657), (6, 107418438), (9, 71612292), (12, 53709219), (18, 35806146), (19, 33921612), (27, 23870764), (36, 17903073), (38, 16960806), (54, 11935382), (57, 11307204), (61, 10565748), (76, 8480403), (108, 5967691), (114, 5653602), (122, 5282874), (171, 3769068), (183, 3521916), (228, 2826801), (244, 2641437), (271, 2378268), (342, 1884534), (361, 1785348), (366, 1760958), (513, 1256356), (542, 1189134), (549, 1173972), (684, 942267), (722, 892674), (732, 880479), (813, 792756), (1026, 628178), (1083, 595116), (1084, 594567), (1098, 586986), (1159, 556092), (1444, 446337), (1626, 396378), (1647, 391324), (2052, 314089), (2166, 297558), (2196, 293493), (2318, 278046), (2439, 264252), (3249, 198372), (3252, 198189), (3294, 195662), (3477, 185364), (4332, 148779), (4636, 139023), (4878, 132126), (5149, 125172), (6498, 99186), (6588, 97831), (6954, 92682), (7317, 88084), (9747, 66124), (9756, 66063), (10298, 62586), (10431, 61788), (12996, 49593), (13908, 46341), (14634, 44042), (15447, 41724), (16531, 38988), (19494, 33062), (20596, 31293), (20862, 30894), (22021, 29268)]