20512246528

素因数分解:

$2^8\times {\mathrm{409}}^1\times {\mathrm{195907}}^1$

素因数の和:196332

約数の個数: 36

約数和(自身を含む): 41044685080

約数和(自身を除く): 20532438552

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 409, 818, 1636, 3272, 6544, 13088, 26176, 52352, 104704, 195907, 391814, 783628, 1567256, 3134512, 6269024, 12538048, 25076096, 50152192, 80125963, 160251926, 320503852, 641007704, 1282015408, 2564030816, 5128061632, 10256123264, 20512246528]

約数ペア:

[(1, 20512246528), (2, 10256123264), (4, 5128061632), (8, 2564030816), (16, 1282015408), (32, 641007704), (64, 320503852), (128, 160251926), (256, 80125963), (409, 50152192), (818, 25076096), (1636, 12538048), (3272, 6269024), (6544, 3134512), (13088, 1567256), (26176, 783628), (52352, 391814), (104704, 195907)]