639804522

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1\times {\mathrm{443}}^1$

素因数の和:843

約数の個数: 64

約数和(自身を含む): 1482292224

約数和(自身を除く): 842487702

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 137, 251, 274, 411, 443, 502, 753, 822, 886, 959, 1329, 1506, 1757, 1918, 2658, 2877, 3101, 3514, 5271, 5754, 6202, 9303, 10542, 18606, 34387, 60691, 68774, 103161, 111193, 121382, 182073, 206322, 222386, 240709, 333579, 364146, 424837, 481418, 667158, 722127, 778351, 849674, 1274511, 1444254, 1556702, 2335053, 2549022, 4670106, 15233441, 30466882, 45700323, 91400646, 106634087, 213268174, 319902261, 639804522]

約数ペア:

[(1, 639804522), (2, 319902261), (3, 213268174), (6, 106634087), (7, 91400646), (14, 45700323), (21, 30466882), (42, 15233441), (137, 4670106), (251, 2549022), (274, 2335053), (411, 1556702), (443, 1444254), (502, 1274511), (753, 849674), (822, 778351), (886, 722127), (959, 667158), (1329, 481418), (1506, 424837), (1757, 364146), (1918, 333579), (2658, 240709), (2877, 222386), (3101, 206322), (3514, 182073), (5271, 121382), (5754, 111193), (6202, 103161), (9303, 68774), (10542, 60691), (18606, 34387)]