820294104

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{251}}^1\times {\mathrm{397}}^1$

素因数の和:678

約数の個数: 128

約数和(自身を含む): 2407104000

約数和(自身を除く): 1586809896

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 147, 168, 196, 251, 294, 343, 392, 397, 502, 588, 686, 753, 794, 1004, 1029, 1176, 1191, 1372, 1506, 1588, 1757, 2008, 2058, 2382, 2744, 2779, 3012, 3176, 3514, 4116, 4764, 5271, 5558, 6024, 7028, 8232, 8337, 9528, 10542, 11116, 12299, 14056, 16674, 19453, 21084, 22232, 24598, 33348, 36897, 38906, 42168, 49196, 58359, 66696, 73794, 77812, 86093, 98392, 99647, 116718, 136171, 147588, 155624, 172186, 199294, 233436, 258279, 272342, 295176, 298941, 344372, 398588, 408513, 466872, 516558, 544684, 597882, 688744, 697529, 797176, 817026, 1033116, 1089368, 1195764, 1395058, 1634052, 2066232, 2092587, 2391528, 2790116, 3268104, 4185174, 4882703, 5580232, 8370348, 9765406, 14648109, 16740696, 19530812, 29296218, 34178921, 39061624, 58592436, 68357842, 102536763, 117184872, 136715684, 205073526, 273431368, 410147052, 820294104]

約数ペア:

[(1, 820294104), (2, 410147052), (3, 273431368), (4, 205073526), (6, 136715684), (7, 117184872), (8, 102536763), (12, 68357842), (14, 58592436), (21, 39061624), (24, 34178921), (28, 29296218), (42, 19530812), (49, 16740696), (56, 14648109), (84, 9765406), (98, 8370348), (147, 5580232), (168, 4882703), (196, 4185174), (251, 3268104), (294, 2790116), (343, 2391528), (392, 2092587), (397, 2066232), (502, 1634052), (588, 1395058), (686, 1195764), (753, 1089368), (794, 1033116), (1004, 817026), (1029, 797176), (1176, 697529), (1191, 688744), (1372, 597882), (1506, 544684), (1588, 516558), (1757, 466872), (2008, 408513), (2058, 398588), (2382, 344372), (2744, 298941), (2779, 295176), (3012, 272342), (3176, 258279), (3514, 233436), (4116, 199294), (4764, 172186), (5271, 155624), (5558, 147588), (6024, 136171), (7028, 116718), (8232, 99647), (8337, 98392), (9528, 86093), (10542, 77812), (11116, 73794), (12299, 66696), (14056, 58359), (16674, 49196), (19453, 42168), (21084, 38906), (22232, 36897), (24598, 33348)]