20402469376

素因数分解:

$2^9\times {\mathrm{43}}^1\times {\mathrm{401}}^1\times {\mathrm{2311}}^1$

素因数の和:2773

約数の個数: 80

約数和(自身を含む): 41835233088

約数和(自身を除く): 21432763712

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 401, 512, 688, 802, 1376, 1604, 2311, 2752, 3208, 4622, 5504, 6416, 9244, 11008, 12832, 17243, 18488, 22016, 25664, 34486, 36976, 51328, 68972, 73952, 99373, 102656, 137944, 147904, 198746, 205312, 275888, 295808, 397492, 551776, 591616, 794984, 926711, 1103552, 1183232, 1589968, 1853422, 2207104, 3179936, 3706844, 4414208, 6359872, 7413688, 8828416, 12719744, 14827376, 25439488, 29654752, 39848573, 50878976, 59309504, 79697146, 118619008, 159394292, 237238016, 318788584, 474476032, 637577168, 1275154336, 2550308672, 5100617344, 10201234688, 20402469376]

約数ペア:

[(1, 20402469376), (2, 10201234688), (4, 5100617344), (8, 2550308672), (16, 1275154336), (32, 637577168), (43, 474476032), (64, 318788584), (86, 237238016), (128, 159394292), (172, 118619008), (256, 79697146), (344, 59309504), (401, 50878976), (512, 39848573), (688, 29654752), (802, 25439488), (1376, 14827376), (1604, 12719744), (2311, 8828416), (2752, 7413688), (3208, 6359872), (4622, 4414208), (5504, 3706844), (6416, 3179936), (9244, 2207104), (11008, 1853422), (12832, 1589968), (17243, 1183232), (18488, 1103552), (22016, 926711), (25664, 794984), (34486, 591616), (36976, 551776), (51328, 397492), (68972, 295808), (73952, 275888), (99373, 205312), (102656, 198746), (137944, 147904)]