138780124

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{421}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 284245696

約数和(自身を除く): 145465572

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 193, 244, 386, 421, 427, 772, 842, 854, 1351, 1684, 1708, 2702, 2947, 5404, 5894, 11773, 11788, 23546, 25681, 47092, 51362, 81253, 82411, 102724, 162506, 164822, 179767, 325012, 329644, 359534, 568771, 719068, 1137542, 2275084, 4956433, 9912866, 19825732, 34695031, 69390062, 138780124]

約数ペア:

[(1, 138780124), (2, 69390062), (4, 34695031), (7, 19825732), (14, 9912866), (28, 4956433), (61, 2275084), (122, 1137542), (193, 719068), (244, 568771), (386, 359534), (421, 329644), (427, 325012), (772, 179767), (842, 164822), (854, 162506), (1351, 102724), (1684, 82411), (1708, 81253), (2702, 51362), (2947, 47092), (5404, 25681), (5894, 23546), (11773, 11788)]