19620992

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:229

約数の個数: 64

約数和(自身を含む): 42301440

約数和(自身を除く): 22680448

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 71, 127, 128, 136, 142, 254, 272, 284, 508, 544, 568, 1016, 1088, 1136, 1207, 2032, 2159, 2176, 2272, 2414, 4064, 4318, 4544, 4828, 8128, 8636, 9017, 9088, 9656, 16256, 17272, 18034, 19312, 34544, 36068, 38624, 69088, 72136, 77248, 138176, 144272, 153289, 154496, 276352, 288544, 306578, 577088, 613156, 1154176, 1226312, 2452624, 4905248, 9810496, 19620992]

約数ペア:

[(1, 19620992), (2, 9810496), (4, 4905248), (8, 2452624), (16, 1226312), (17, 1154176), (32, 613156), (34, 577088), (64, 306578), (68, 288544), (71, 276352), (127, 154496), (128, 153289), (136, 144272), (142, 138176), (254, 77248), (272, 72136), (284, 69088), (508, 38624), (544, 36068), (568, 34544), (1016, 19312), (1088, 18034), (1136, 17272), (1207, 16256), (2032, 9656), (2159, 9088), (2176, 9017), (2272, 8636), (2414, 8128), (4064, 4828), (4318, 4544)]