20785098730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{661}}^1\times {\mathrm{1597}}^1$

素因数の和:2455

約数の個数: 64

約数和(自身を含む): 41130218880

約数和(自身を除く): 20345120150

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 179, 358, 661, 895, 1322, 1597, 1790, 1969, 3194, 3305, 3938, 6610, 7271, 7985, 9845, 14542, 15970, 17567, 19690, 35134, 36355, 72710, 87835, 118319, 175670, 236638, 285863, 571726, 591595, 1055617, 1183190, 1301509, 1429315, 2111234, 2603018, 2858630, 3144493, 5278085, 6288986, 6507545, 10556170, 11611787, 13015090, 15722465, 23223574, 31444930, 58058935, 116117870, 188955443, 377910886, 944777215, 1889554430, 2078509873, 4157019746, 10392549365, 20785098730]

約数ペア:

[(1, 20785098730), (2, 10392549365), (5, 4157019746), (10, 2078509873), (11, 1889554430), (22, 944777215), (55, 377910886), (110, 188955443), (179, 116117870), (358, 58058935), (661, 31444930), (895, 23223574), (1322, 15722465), (1597, 13015090), (1790, 11611787), (1969, 10556170), (3194, 6507545), (3305, 6288986), (3938, 5278085), (6610, 3144493), (7271, 2858630), (7985, 2603018), (9845, 2111234), (14542, 1429315), (15970, 1301509), (17567, 1183190), (19690, 1055617), (35134, 591595), (36355, 571726), (72710, 285863), (87835, 236638), (118319, 175670)]