20153990128

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{1663}}^1\times {\mathrm{6949}}^1$

素因数の和:8729

約数の個数: 40

約数和(自身を含む): 39435968000

約数和(自身を除く): 19281977872

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1663, 1744, 3326, 6652, 6949, 13304, 13898, 26608, 27796, 55592, 111184, 181267, 362534, 725068, 757441, 1450136, 1514882, 2900272, 3029764, 6059528, 11556187, 12119056, 23112374, 46224748, 92449496, 184898992, 1259624383, 2519248766, 5038497532, 10076995064, 20153990128]

約数ペア:

[(1, 20153990128), (2, 10076995064), (4, 5038497532), (8, 2519248766), (16, 1259624383), (109, 184898992), (218, 92449496), (436, 46224748), (872, 23112374), (1663, 12119056), (1744, 11556187), (3326, 6059528), (6652, 3029764), (6949, 2900272), (13304, 1514882), (13898, 1450136), (26608, 757441), (27796, 725068), (55592, 362534), (111184, 181267)]