251243905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{1171}}^1$

素因数の和:1317

約数の個数: 32

約数和(自身を含む): 340236288

約数和(自身を除く): 88992383

約数列:

[1, 5, 11, 47, 55, 83, 235, 415, 517, 913, 1171, 2585, 3901, 4565, 5855, 12881, 19505, 42911, 55037, 64405, 97193, 214555, 275185, 485965, 605407, 1069123, 3027035, 4568071, 5345615, 22840355, 50248781, 251243905]

約数ペア:

[(1, 251243905), (5, 50248781), (11, 22840355), (47, 5345615), (55, 4568071), (83, 3027035), (235, 1069123), (415, 605407), (517, 485965), (913, 275185), (1171, 214555), (2585, 97193), (3901, 64405), (4565, 55037), (5855, 42911), (12881, 19505)]