65420538625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{3643}}^1$

素因数の和:3971

約数の個数: 64

約数和(自身を含む): 90344846592

約数和(自身を除く): 24924307967

約数列:

[1, 5, 13, 25, 43, 65, 125, 215, 257, 325, 559, 1075, 1285, 1625, 2795, 3341, 3643, 5375, 6425, 11051, 13975, 16705, 18215, 32125, 47359, 55255, 69875, 83525, 91075, 143663, 156649, 236795, 276275, 417625, 455375, 718315, 783245, 936251, 1183975, 1381375, 2036437, 3591575, 3916225, 4681255, 5919875, 10182185, 12171263, 17957875, 19581125, 23406275, 40258793, 50910925, 60856315, 117031375, 201293965, 254554625, 304281575, 523364309, 1006469825, 1521407875, 2616821545, 5032349125, 13084107725, 65420538625]

約数ペア:

[(1, 65420538625), (5, 13084107725), (13, 5032349125), (25, 2616821545), (43, 1521407875), (65, 1006469825), (125, 523364309), (215, 304281575), (257, 254554625), (325, 201293965), (559, 117031375), (1075, 60856315), (1285, 50910925), (1625, 40258793), (2795, 23406275), (3341, 19581125), (3643, 17957875), (5375, 12171263), (6425, 10182185), (11051, 5919875), (13975, 4681255), (16705, 3916225), (18215, 3591575), (32125, 2036437), (47359, 1381375), (55255, 1183975), (69875, 936251), (83525, 783245), (91075, 718315), (143663, 455375), (156649, 417625), (236795, 276275)]