256965215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{233}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 359468928

約数和(自身を除く): 102503713

約数列:

[1, 5, 13, 19, 47, 65, 95, 233, 235, 247, 361, 611, 893, 1165, 1235, 1805, 3029, 3055, 4427, 4465, 4693, 10951, 11609, 15145, 16967, 22135, 23465, 54755, 57551, 58045, 84113, 84835, 142363, 208069, 220571, 287755, 420565, 711815, 1040345, 1093469, 1102855, 2704897, 3953311, 5467345, 13524485, 19766555, 51393043, 256965215]

約数ペア:

[(1, 256965215), (5, 51393043), (13, 19766555), (19, 13524485), (47, 5467345), (65, 3953311), (95, 2704897), (233, 1102855), (235, 1093469), (247, 1040345), (361, 711815), (611, 420565), (893, 287755), (1165, 220571), (1235, 208069), (1805, 142363), (3029, 84835), (3055, 84113), (4427, 58045), (4465, 57551), (4693, 54755), (10951, 23465), (11609, 22135), (15145, 16967)]