20163256

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1217}}^1$

素因数の和:1351

約数の個数: 32

約数和(自身を含む): 40194000

約数和(自身を除く): 20030744

約数列:

[1, 2, 4, 8, 19, 38, 76, 109, 152, 218, 436, 872, 1217, 2071, 2434, 4142, 4868, 8284, 9736, 16568, 23123, 46246, 92492, 132653, 184984, 265306, 530612, 1061224, 2520407, 5040814, 10081628, 20163256]

約数ペア:

[(1, 20163256), (2, 10081628), (4, 5040814), (8, 2520407), (19, 1061224), (38, 530612), (76, 265306), (109, 184984), (152, 132653), (218, 92492), (436, 46246), (872, 23123), (1217, 16568), (2071, 9736), (2434, 8284), (4142, 4868)]