20803204810

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{38713}}^1$

素因数の和:38875

約数の個数: 64

約数和(自身を含む): 41393008800

約数和(自身を除く): 20589803990

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 109, 145, 170, 218, 290, 493, 545, 986, 1090, 1853, 2465, 3161, 3706, 4930, 6322, 9265, 15805, 18530, 31610, 38713, 53737, 77426, 107474, 193565, 268685, 387130, 537370, 658121, 1122677, 1316242, 2245354, 3290605, 4219717, 5613385, 6581210, 8439434, 11226770, 19085509, 21098585, 38171018, 42197170, 71735189, 95427545, 122371793, 143470378, 190855090, 244743586, 358675945, 611858965, 717351890, 1223717930, 2080320481, 4160640962, 10401602405, 20803204810]

約数ペア:

[(1, 20803204810), (2, 10401602405), (5, 4160640962), (10, 2080320481), (17, 1223717930), (29, 717351890), (34, 611858965), (58, 358675945), (85, 244743586), (109, 190855090), (145, 143470378), (170, 122371793), (218, 95427545), (290, 71735189), (493, 42197170), (545, 38171018), (986, 21098585), (1090, 19085509), (1853, 11226770), (2465, 8439434), (3161, 6581210), (3706, 5613385), (4930, 4219717), (6322, 3290605), (9265, 2245354), (15805, 1316242), (18530, 1122677), (31610, 658121), (38713, 537370), (53737, 387130), (77426, 268685), (107474, 193565)]