2561325

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 4749696

約数和(自身を除く): 2188371

約数列:

[1, 3, 5, 13, 15, 25, 37, 39, 65, 71, 75, 111, 185, 195, 213, 325, 355, 481, 555, 923, 925, 975, 1065, 1443, 1775, 2405, 2627, 2769, 2775, 4615, 5325, 7215, 7881, 12025, 13135, 13845, 23075, 34151, 36075, 39405, 65675, 69225, 102453, 170755, 197025, 512265, 853775, 2561325]

約数ペア:

[(1, 2561325), (3, 853775), (5, 512265), (13, 197025), (15, 170755), (25, 102453), (37, 69225), (39, 65675), (65, 39405), (71, 36075), (75, 34151), (111, 23075), (185, 13845), (195, 13135), (213, 12025), (325, 7881), (355, 7215), (481, 5325), (555, 4615), (923, 2775), (925, 2769), (975, 2627), (1065, 2405), (1443, 1775)]