20001064132

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{660799}}^1$

素因数の和:660880

約数の個数: 48

約数和(自身を含む): 42629529600

約数和(自身を除く): 22628465468

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 47, 92, 94, 161, 188, 322, 329, 644, 658, 1081, 1316, 2162, 4324, 7567, 15134, 30268, 660799, 1321598, 2643196, 4625593, 9251186, 15198377, 18502372, 30396754, 31057553, 60793508, 62115106, 106388639, 124230212, 212777278, 217402871, 425554556, 434805742, 714323719, 869611484, 1428647438, 2857294876, 5000266033, 10000532066, 20001064132]

約数ペア:

[(1, 20001064132), (2, 10000532066), (4, 5000266033), (7, 2857294876), (14, 1428647438), (23, 869611484), (28, 714323719), (46, 434805742), (47, 425554556), (92, 217402871), (94, 212777278), (161, 124230212), (188, 106388639), (322, 62115106), (329, 60793508), (644, 31057553), (658, 30396754), (1081, 18502372), (1316, 15198377), (2162, 9251186), (4324, 4625593), (7567, 2643196), (15134, 1321598), (30268, 660799)]