20512142672

素因数分解:

$2^4\times 7^1\times {\mathrm{9787}}^1\times {\mathrm{18713}}^1$

素因数の和:28515

約数の個数: 40

約数和(自身を含む): 45426812736

約数和(自身を除く): 24914670064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 9787, 18713, 19574, 37426, 39148, 68509, 74852, 78296, 130991, 137018, 149704, 156592, 261982, 274036, 299408, 523964, 548072, 1047928, 1096144, 2095856, 183144131, 366288262, 732576524, 1282008917, 1465153048, 2564017834, 2930306096, 5128035668, 10256071336, 20512142672]

約数ペア:

[(1, 20512142672), (2, 10256071336), (4, 5128035668), (7, 2930306096), (8, 2564017834), (14, 1465153048), (16, 1282008917), (28, 732576524), (56, 366288262), (112, 183144131), (9787, 2095856), (18713, 1096144), (19574, 1047928), (37426, 548072), (39148, 523964), (68509, 299408), (74852, 274036), (78296, 261982), (130991, 156592), (137018, 149704)]