20009227511

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{1087}}^1$

素因数の和:1360

約数の個数: 64

約数和(自身を含む): 26619199488

約数和(自身を除く): 6609971977

約数列:

[1, 7, 13, 17, 73, 91, 119, 163, 221, 511, 949, 1087, 1141, 1241, 1547, 2119, 2771, 6643, 7609, 8687, 11899, 14131, 14833, 16133, 18479, 19397, 36023, 79351, 83293, 98917, 112931, 129353, 154687, 177181, 202283, 240227, 252161, 555457, 1031563, 1082809, 1240267, 1348967, 1415981, 1681589, 2303353, 2629679, 3012077, 7220941, 9442769, 12934213, 16123471, 17536571, 18407753, 21084539, 39157001, 90539491, 122755997, 168144769, 219881621, 274099007, 1177013383, 1539171347, 2858461073, 20009227511]

約数ペア:

[(1, 20009227511), (7, 2858461073), (13, 1539171347), (17, 1177013383), (73, 274099007), (91, 219881621), (119, 168144769), (163, 122755997), (221, 90539491), (511, 39157001), (949, 21084539), (1087, 18407753), (1141, 17536571), (1241, 16123471), (1547, 12934213), (2119, 9442769), (2771, 7220941), (6643, 3012077), (7609, 2629679), (8687, 2303353), (11899, 1681589), (14131, 1415981), (14833, 1348967), (16133, 1240267), (18479, 1082809), (19397, 1031563), (36023, 555457), (79351, 252161), (83293, 240227), (98917, 202283), (112931, 177181), (129353, 154687)]