644999992

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 192

約数和(自身を含む): 1675987200

約数和(自身を除く): 1030987208

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 19, 26, 28, 34, 38, 52, 56, 68, 76, 91, 104, 119, 133, 136, 152, 169, 182, 211, 221, 238, 247, 266, 323, 338, 364, 422, 442, 476, 494, 532, 646, 676, 728, 844, 884, 952, 988, 1064, 1183, 1292, 1352, 1477, 1547, 1688, 1729, 1768, 1976, 2261, 2366, 2584, 2743, 2873, 2954, 3094, 3211, 3458, 3587, 4009, 4199, 4522, 4732, 5486, 5746, 5908, 6188, 6422, 6916, 7174, 8018, 8398, 9044, 9464, 10972, 11492, 11816, 12376, 12844, 13832, 14348, 16036, 16796, 18088, 19201, 20111, 21944, 22477, 22984, 25109, 25688, 28063, 28696, 29393, 32072, 33592, 35659, 38402, 40222, 44954, 46631, 50218, 52117, 54587, 56126, 58786, 68153, 71318, 76804, 80444, 89908, 93262, 100436, 104234, 109174, 112252, 117572, 136306, 142636, 153608, 160888, 179816, 186524, 200872, 208468, 218348, 224504, 235144, 249613, 272612, 285272, 326417, 364819, 373048, 382109, 416936, 436696, 477071, 499226, 545224, 606203, 652834, 677521, 729638, 764218, 885989, 954142, 998452, 1212406, 1305668, 1355042, 1459276, 1528436, 1771978, 1908284, 1996904, 2424812, 2611336, 2710084, 2918552, 3056872, 3543956, 3816568, 4243421, 4742647, 4849624, 5420168, 6201923, 7087912, 8486842, 9485294, 11517857, 12403846, 16973684, 18970588, 23035714, 24807692, 33947368, 37941176, 46071428, 49615384, 80624999, 92142856, 161249998, 322499996, 644999992]

約数ペア:

[(1, 644999992), (2, 322499996), (4, 161249998), (7, 92142856), (8, 80624999), (13, 49615384), (14, 46071428), (17, 37941176), (19, 33947368), (26, 24807692), (28, 23035714), (34, 18970588), (38, 16973684), (52, 12403846), (56, 11517857), (68, 9485294), (76, 8486842), (91, 7087912), (104, 6201923), (119, 5420168), (133, 4849624), (136, 4742647), (152, 4243421), (169, 3816568), (182, 3543956), (211, 3056872), (221, 2918552), (238, 2710084), (247, 2611336), (266, 2424812), (323, 1996904), (338, 1908284), (364, 1771978), (422, 1528436), (442, 1459276), (476, 1355042), (494, 1305668), (532, 1212406), (646, 998452), (676, 954142), (728, 885989), (844, 764218), (884, 729638), (952, 677521), (988, 652834), (1064, 606203), (1183, 545224), (1292, 499226), (1352, 477071), (1477, 436696), (1547, 416936), (1688, 382109), (1729, 373048), (1768, 364819), (1976, 326417), (2261, 285272), (2366, 272612), (2584, 249613), (2743, 235144), (2873, 224504), (2954, 218348), (3094, 208468), (3211, 200872), (3458, 186524), (3587, 179816), (4009, 160888), (4199, 153608), (4522, 142636), (4732, 136306), (5486, 117572), (5746, 112252), (5908, 109174), (6188, 104234), (6422, 100436), (6916, 93262), (7174, 89908), (8018, 80444), (8398, 76804), (9044, 71318), (9464, 68153), (10972, 58786), (11492, 56126), (11816, 54587), (12376, 52117), (12844, 50218), (13832, 46631), (14348, 44954), (16036, 40222), (16796, 38402), (18088, 35659), (19201, 33592), (20111, 32072), (21944, 29393), (22477, 28696), (22984, 28063), (25109, 25688)]