251367.0000000

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:214

約数の個数: 64

約数和(自身を含む): 20684160

約数和(自身を除く): 11505848

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 71, 88, 104, 113, 142, 143, 226, 284, 286, 452, 568, 572, 781, 904, 923, 1144, 1243, 1469, 1562, 1846, 2486, 2938, 3124, 3692, 4972, 5876, 6248, 7384, 8023, 9944, 10153, 11752, 16046, 16159, 20306, 32092, 32318, 40612, 64184, 64636, 81224, 88253, 104299, 129272, 176506, 208598, 353012, 417196, 706024, 834392, 1147289, 2294578, 4589156, 9178312]

約数ペア:

[(1, 9178312), (2, 4589156), (4, 2294578), (8, 1147289), (11, 834392), (13, 706024), (22, 417196), (26, 353012), (44, 208598), (52, 176506), (71, 129272), (88, 104299), (104, 88253), (113, 81224), (142, 64636), (143, 64184), (226, 40612), (284, 32318), (286, 32092), (452, 20306), (568, 16159), (572, 16046), (781, 11752), (904, 10153), (923, 9944), (1144, 8023), (1243, 7384), (1469, 6248), (1562, 5876), (1846, 4972), (2486, 3692), (2938, 3124)]