20187193328

素因数分解:

$2^4\times {\mathrm{401}}^1\times {\mathrm{907}}^1\times {\mathrm{3469}}^1$

素因数の和:4785

約数の個数: 40

約数和(自身を含む): 39264771120

約数和(自身を除く): 19077577792

約数列:

[1, 2, 4, 8, 16, 401, 802, 907, 1604, 1814, 3208, 3469, 3628, 6416, 6938, 7256, 13876, 14512, 27752, 55504, 363707, 727414, 1391069, 1454828, 2782138, 2909656, 3146383, 5564276, 5819312, 6292766, 11128552, 12585532, 22257104, 25171064, 50342128, 1261699583, 2523399166, 5046798332, 10093596664, 20187193328]

約数ペア:

[(1, 20187193328), (2, 10093596664), (4, 5046798332), (8, 2523399166), (16, 1261699583), (401, 50342128), (802, 25171064), (907, 22257104), (1604, 12585532), (1814, 11128552), (3208, 6292766), (3469, 5819312), (3628, 5564276), (6416, 3146383), (6938, 2909656), (7256, 2782138), (13876, 1454828), (14512, 1391069), (27752, 727414), (55504, 363707)]