31139475

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 54163200

約数和(自身を除く): 23023725

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 103, 139, 145, 309, 417, 435, 515, 695, 725, 1545, 2085, 2175, 2575, 2987, 3475, 4031, 7725, 8961, 10425, 12093, 14317, 14935, 20155, 42951, 44805, 60465, 71585, 74675, 100775, 214755, 224025, 302325, 357925, 415193, 1073775, 1245579, 2075965, 6227895, 10379825, 31139475]

約数ペア:

[(1, 31139475), (3, 10379825), (5, 6227895), (15, 2075965), (25, 1245579), (29, 1073775), (75, 415193), (87, 357925), (103, 302325), (139, 224025), (145, 214755), (309, 100775), (417, 74675), (435, 71585), (515, 60465), (695, 44805), (725, 42951), (1545, 20155), (2085, 14935), (2175, 14317), (2575, 12093), (2987, 10425), (3475, 8961), (4031, 7725)]