81345628

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1123}}^1$

素因数の和:1346

約数の個数: 48

約数和(自身を含む): 176243200

約数和(自身を除く): 94897572

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 199, 364, 398, 796, 1123, 1393, 2246, 2587, 2786, 4492, 5174, 5572, 7861, 10348, 14599, 15722, 18109, 29198, 31444, 36218, 58396, 72436, 102193, 204386, 223477, 408772, 446954, 893908, 1564339, 2905201, 3128678, 5810402, 6257356, 11620804, 20336407, 40672814, 81345628]

約数ペア:

[(1, 81345628), (2, 40672814), (4, 20336407), (7, 11620804), (13, 6257356), (14, 5810402), (26, 3128678), (28, 2905201), (52, 1564339), (91, 893908), (182, 446954), (199, 408772), (364, 223477), (398, 204386), (796, 102193), (1123, 72436), (1393, 58396), (2246, 36218), (2587, 31444), (2786, 29198), (4492, 18109), (5174, 15722), (5572, 14599), (7861, 10348)]