20196865712

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{15978533}}^1$

素因数の和:15978620

約数の個数: 20

約数和(自身を含む): 39626764320

約数和(自身を除く): 19429898608

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 15978533, 31957066, 63914132, 127828264, 255656528, 1262304107, 2524608214, 5049216428, 10098432856, 20196865712]

約数ペア:

[(1, 20196865712), (2, 10098432856), (4, 5049216428), (8, 2524608214), (16, 1262304107), (79, 255656528), (158, 127828264), (316, 63914132), (632, 31957066), (1264, 15978533)]