20800136

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{173}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 47606400

約数和(自身を除く): 26806264

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 113, 133, 152, 173, 226, 266, 346, 452, 532, 692, 791, 904, 1064, 1211, 1384, 1582, 2147, 2422, 3164, 3287, 4294, 4844, 6328, 6574, 8588, 9688, 13148, 15029, 17176, 19549, 23009, 26296, 30058, 39098, 46018, 60116, 78196, 92036, 120232, 136843, 156392, 184072, 273686, 371431, 547372, 742862, 1094744, 1485724, 2600017, 2971448, 5200034, 10400068, 20800136]

約数ペア:

[(1, 20800136), (2, 10400068), (4, 5200034), (7, 2971448), (8, 2600017), (14, 1485724), (19, 1094744), (28, 742862), (38, 547372), (56, 371431), (76, 273686), (113, 184072), (133, 156392), (152, 136843), (173, 120232), (226, 92036), (266, 78196), (346, 60116), (452, 46018), (532, 39098), (692, 30058), (791, 26296), (904, 23009), (1064, 19549), (1211, 17176), (1384, 15029), (1582, 13148), (2147, 9688), (2422, 8588), (3164, 6574), (3287, 6328), (4294, 4844)]