81781434

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{193}}^1$

素因数の和:289

約数の個数: 128

約数和(自身を含む): 223488000

約数和(自身を除く): 141706566

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 54, 57, 59, 63, 114, 118, 126, 133, 171, 177, 189, 193, 266, 342, 354, 378, 386, 399, 413, 513, 531, 579, 798, 826, 1026, 1062, 1121, 1158, 1197, 1239, 1351, 1593, 1737, 2242, 2394, 2478, 2702, 3186, 3363, 3474, 3591, 3667, 3717, 4053, 5211, 6726, 7182, 7334, 7434, 7847, 8106, 10089, 10422, 11001, 11151, 11387, 12159, 15694, 20178, 22002, 22302, 22774, 23541, 24318, 25669, 30267, 33003, 34161, 36477, 47082, 51338, 60534, 66006, 68322, 70623, 72954, 77007, 79709, 99009, 102483, 141246, 154014, 159418, 198018, 204966, 211869, 216353, 231021, 239127, 307449, 423738, 432706, 462042, 478254, 614898, 649059, 693063, 717381, 1298118, 1386126, 1434762, 1514471, 1947177, 2152143, 3028942, 3894354, 4304286, 4543413, 5841531, 9086826, 11683062, 13630239, 27260478, 40890717, 81781434]

約数ペア:

[(1, 81781434), (2, 40890717), (3, 27260478), (6, 13630239), (7, 11683062), (9, 9086826), (14, 5841531), (18, 4543413), (19, 4304286), (21, 3894354), (27, 3028942), (38, 2152143), (42, 1947177), (54, 1514471), (57, 1434762), (59, 1386126), (63, 1298118), (114, 717381), (118, 693063), (126, 649059), (133, 614898), (171, 478254), (177, 462042), (189, 432706), (193, 423738), (266, 307449), (342, 239127), (354, 231021), (378, 216353), (386, 211869), (399, 204966), (413, 198018), (513, 159418), (531, 154014), (579, 141246), (798, 102483), (826, 99009), (1026, 79709), (1062, 77007), (1121, 72954), (1158, 70623), (1197, 68322), (1239, 66006), (1351, 60534), (1593, 51338), (1737, 47082), (2242, 36477), (2394, 34161), (2478, 33003), (2702, 30267), (3186, 25669), (3363, 24318), (3474, 23541), (3591, 22774), (3667, 22302), (3717, 22002), (4053, 20178), (5211, 15694), (6726, 12159), (7182, 11387), (7334, 11151), (7434, 11001), (7847, 10422), (8106, 10089)]