20160741965

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1\times {\mathrm{3301}}^1$

素因数の和:3790

約数の個数: 64

約数和(自身を含む): 30816694272

約数和(自身を除く): 10655952307

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 433, 455, 1085, 2015, 2165, 2821, 3031, 3301, 5629, 13423, 14105, 15155, 16505, 23107, 28145, 39403, 42913, 67115, 93961, 102331, 115535, 174499, 197015, 214565, 300391, 469805, 511655, 716317, 872495, 1221493, 1330303, 1429333, 1501955, 3581585, 6107465, 6651515, 7146665, 9312121, 10005331, 18581329, 44309323, 46560605, 50026655, 92906645, 130069303, 221546615, 310165261, 576021199, 650346515, 1550826305, 2880105995, 4032148393, 20160741965]

約数ペア:

[(1, 20160741965), (5, 4032148393), (7, 2880105995), (13, 1550826305), (31, 650346515), (35, 576021199), (65, 310165261), (91, 221546615), (155, 130069303), (217, 92906645), (403, 50026655), (433, 46560605), (455, 44309323), (1085, 18581329), (2015, 10005331), (2165, 9312121), (2821, 7146665), (3031, 6651515), (3301, 6107465), (5629, 3581585), (13423, 1501955), (14105, 1429333), (15155, 1330303), (16505, 1221493), (23107, 872495), (28145, 716317), (39403, 511655), (42913, 469805), (67115, 300391), (93961, 214565), (102331, 197015), (115535, 174499)]