664642816

素因数分解:

$2^8\times {\mathrm{127}}^1\times {\mathrm{20443}}^1$

素因数の和:20586

約数の個数: 36

約数和(自身を含む): 1337201152

約数和(自身を除く): 672558336

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 128, 254, 256, 508, 1016, 2032, 4064, 8128, 16256, 20443, 32512, 40886, 81772, 163544, 327088, 654176, 1308352, 2596261, 2616704, 5192522, 5233408, 10385044, 20770088, 41540176, 83080352, 166160704, 332321408, 664642816]

約数ペア:

[(1, 664642816), (2, 332321408), (4, 166160704), (8, 83080352), (16, 41540176), (32, 20770088), (64, 10385044), (127, 5233408), (128, 5192522), (254, 2616704), (256, 2596261), (508, 1308352), (1016, 654176), (2032, 327088), (4064, 163544), (8128, 81772), (16256, 40886), (20443, 32512)]