2016995720

素因数分解:

$2^3\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{25301}}^1$

素因数の和:27305

約数の個数: 32

約数和(自身を含む): 4540696920

約数和(自身を除く): 2523701200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1993, 3986, 7972, 9965, 15944, 19930, 25301, 39860, 50602, 79720, 101204, 126505, 202408, 253010, 506020, 1012040, 50424893, 100849786, 201699572, 252124465, 403399144, 504248930, 1008497860, 2016995720]

約数ペア:

[(1, 2016995720), (2, 1008497860), (4, 504248930), (5, 403399144), (8, 252124465), (10, 201699572), (20, 100849786), (40, 50424893), (1993, 1012040), (3986, 506020), (7972, 253010), (9965, 202408), (15944, 126505), (19930, 101204), (25301, 79720), (39860, 50602)]