15721328

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{359}}^1$

素因数の和:414

約数の個数: 80

約数和(自身を含む): 38568960

約数和(自身を除く): 22847632

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 23, 28, 34, 46, 56, 68, 92, 112, 119, 136, 161, 184, 238, 272, 322, 359, 368, 391, 476, 644, 718, 782, 952, 1288, 1436, 1564, 1904, 2513, 2576, 2737, 2872, 3128, 5026, 5474, 5744, 6103, 6256, 8257, 10052, 10948, 12206, 16514, 20104, 21896, 24412, 33028, 40208, 42721, 43792, 48824, 57799, 66056, 85442, 97648, 115598, 132112, 140369, 170884, 231196, 280738, 341768, 462392, 561476, 683536, 924784, 982583, 1122952, 1965166, 2245904, 3930332, 7860664, 15721328]

約数ペア:

[(1, 15721328), (2, 7860664), (4, 3930332), (7, 2245904), (8, 1965166), (14, 1122952), (16, 982583), (17, 924784), (23, 683536), (28, 561476), (34, 462392), (46, 341768), (56, 280738), (68, 231196), (92, 170884), (112, 140369), (119, 132112), (136, 115598), (161, 97648), (184, 85442), (238, 66056), (272, 57799), (322, 48824), (359, 43792), (368, 42721), (391, 40208), (476, 33028), (644, 24412), (718, 21896), (782, 20104), (952, 16514), (1288, 12206), (1436, 10948), (1564, 10052), (1904, 8257), (2513, 6256), (2576, 6103), (2737, 5744), (2872, 5474), (3128, 5026)]