51987975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{751}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 93993984

約数和(自身を除く): 42006009

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 71, 75, 195, 213, 325, 355, 751, 923, 975, 1065, 1775, 2253, 2769, 3755, 4615, 5325, 9763, 11265, 13845, 18775, 23075, 29289, 48815, 53321, 56325, 69225, 146445, 159963, 244075, 266605, 693173, 732225, 799815, 1333025, 2079519, 3465865, 3999075, 10397595, 17329325, 51987975]

約数ペア:

[(1, 51987975), (3, 17329325), (5, 10397595), (13, 3999075), (15, 3465865), (25, 2079519), (39, 1333025), (65, 799815), (71, 732225), (75, 693173), (195, 266605), (213, 244075), (325, 159963), (355, 146445), (751, 69225), (923, 56325), (975, 53321), (1065, 48815), (1775, 29289), (2253, 23075), (2769, 18775), (3755, 13845), (4615, 11265), (5325, 9763)]